Title: Installed update, cannot log in! Last modified: August 22, 2016 --- # Installed update, cannot log in! * Resolved [DavidSortOf](https://wordpress.org/support/users/davidsortof/) * (@davidsortof) * [11 years, 2 months ago](https://wordpress.org/support/topic/installed-update-cannot-log-in/) * Hi, I just updated Semalt Blocker, and when I logged off, I got a wierd message. So I attempted to log in, and got the same message: * Notice: Undefined index: domains in /home/[username]/[site]/wp-content/plugins/ semalt/semalt.php on line 32 * Warning: Cannot modify header information – headers already sent by (output started at /home/[username]/[site]/wp-content/plugins/semalt/semalt.php:32) in /home/[ username]/[site]/wp-includes/pluggable.php on line 1178 * What’s the best way to deal with that? * [https://wordpress.org/plugins/semalt/](https://wordpress.org/plugins/semalt/) Viewing 15 replies - 1 through 15 (of 26 total) 1 [2](https://wordpress.org/support/topic/installed-update-cannot-log-in/page/2/?output_format=md) [→](https://wordpress.org/support/topic/installed-update-cannot-log-in/page/2/?output_format=md) * Thread Starter [DavidSortOf](https://wordpress.org/support/users/davidsortof/) * (@davidsortof) * [11 years, 2 months ago](https://wordpress.org/support/topic/installed-update-cannot-log-in/#post-5809448) * And I now see that Semalt Blocker is only compatible up to 4.0.1, and I’m running 4.1.1. Please help though, as I’m dead in the water. * Thread Starter [DavidSortOf](https://wordpress.org/support/users/davidsortof/) * (@davidsortof) * [11 years, 2 months ago](https://wordpress.org/support/topic/installed-update-cannot-log-in/#post-5809450) * Ah. I see, I’ll just delete it using FTP. * Thread Starter [DavidSortOf](https://wordpress.org/support/users/davidsortof/) * (@davidsortof) * [11 years, 2 months ago](https://wordpress.org/support/topic/installed-update-cannot-log-in/#post-5809451) * But do I need to do anything with pluggable.php? * Thread Starter [DavidSortOf](https://wordpress.org/support/users/davidsortof/) * (@davidsortof) * [11 years, 2 months ago](https://wordpress.org/support/topic/installed-update-cannot-log-in/#post-5809453) * Done. * Thread Starter [DavidSortOf](https://wordpress.org/support/users/davidsortof/) * (@davidsortof) * [11 years, 2 months ago](https://wordpress.org/support/topic/installed-update-cannot-log-in/#post-5809676) * Hi, so far so good with the latest update and WP 4.1.1. Change the compatibility info? * Thread Starter [DavidSortOf](https://wordpress.org/support/users/davidsortof/) * (@davidsortof) * [11 years, 2 months ago](https://wordpress.org/support/topic/installed-update-cannot-log-in/#post-5809691) * A bit more info. On another one of my sites, also in WP 4.1.1, I get the following code on the WP login page, _above_ the normal username/password fields, and logging in works (Noting this because clearly something is wrong): * ``` Warning: Cannot modify header information - headers already sent by (output started at /home/[username]/[site].com/wp-content/plugins/semalt/semalt.php:29) in /home/[username]/[site].com/wp-includes/pluggable.php on line 949 Warning: Cannot modify header information - headers already sent by (output started at /home/[username]/[site].com/wp-content/plugins/semalt/semalt.php:29) in /home/[username]/[site].com/wp-includes/pluggable.php on line 950 Warning: Cannot modify header information - headers already sent by (output started at /home/[username]/[site].com/wp-content/plugins/semalt/semalt.php:29) in /home/[username]/[site].com/wp-includes/pluggable.php on line 951 Warning: Cannot modify header information - headers already sent by (output started at /home/[username]/[site].com/wp-content/plugins/semalt/semalt.php:29) in /home/[username]/[site].com/wp-includes/pluggable.php on line 954 Warning: Cannot modify header information - headers already sent by (output started at /home/[username]/[site].com/wp-content/plugins/semalt/semalt.php:29) in /home/[username]/[site].com/wp-includes/pluggable.php on line 955 Warning: Cannot modify header information - headers already sent by (output started at /home/[username]/[site].com/wp-content/plugins/semalt/semalt.php:29) in /home/[username]/[site].com/wp-includes/pluggable.php on line 956 Warning: Cannot modify header information - headers already sent by (output started at /home/[username]/[site].com/wp-content/plugins/semalt/semalt.php:29) in /home/[username]/[site].com/wp-includes/pluggable.php on line 957 ``` * Also, kdunham’s [post](https://wordpress.org/support/topic/everything-redirecting-to-google?replies=2) is very disconcerting, and I agree that this is a huge snafu, in that, as he says “many might have this problem, and not even realize it.” So I’ll just deactivate on both my sites until this is confirmed tested on 4.1.1, and the Google error is confirmed fixed. * Thank You! * Plugin Author [Alex Moss](https://wordpress.org/support/users/alexmoss/) * (@alexmoss) * [11 years, 2 months ago](https://wordpress.org/support/topic/installed-update-cannot-log-in/#post-5809695) * Hi David, can you please [fill out this form](http://peadig.com/support/) and get in touch with me over email to solve this? Please confirm you’re also using v1.1.2. Thanks * Thread Starter [DavidSortOf](https://wordpress.org/support/users/davidsortof/) * (@davidsortof) * [11 years, 2 months ago](https://wordpress.org/support/topic/installed-update-cannot-log-in/#post-5809707) * Done. And yes, I’m using v1.1.2. * Thanks, * David * Plugin Author [Alex Moss](https://wordpress.org/support/users/alexmoss/) * (@alexmoss) * [11 years, 2 months ago](https://wordpress.org/support/topic/installed-update-cannot-log-in/#post-5809708) * I’ve been able to test on another site and now updated to 1.1.3. This is live on [peadig.com](http://peadig.com/) and have tested with a couple of sites. * Can you confirm this works for you now? * Thread Starter [DavidSortOf](https://wordpress.org/support/users/davidsortof/) * (@davidsortof) * [11 years, 2 months ago](https://wordpress.org/support/topic/installed-update-cannot-log-in/#post-5809709) * Sadly, though the [Google Redirect Issue](https://wordpress.org/support/topic/everything-redirecting-to-google?replies=8#post-6613210) seems to be fixed on one of my sites, this issue, which I’m having one one site, is worse with the 1.1.3 update: * Now, I get a whole string of similar messages when I log off of WordPress, and when I load the log-on page, I get this: * ``` Notice: Undefined index: domains in /home/[username]/[site].com/wp-content/plugins/semalt/semalt.php on line 55 Warning: Cannot modify header information - headers already sent by (output started at /home/[username]/[site].com/wp-content/plugins/semalt/semalt.php:55) in /home/[username]/[site].com/wp-login.php on line 424 Warning: Cannot modify header information - headers already sent by (output started at /home/[username]/[site].com/wp-content/plugins/semalt/semalt.php:55) in /home/[username]/[site].com/wp-login.php on line 437 Warning: Cannot modify header information - headers already sent by (output started at /home/[username]/[site].com/wp-content/plugins/semalt/semalt.php:55) in /home/[username]/[site].com/wp-includes/pluggable.php on line 918 Warning: Cannot modify header information - headers already sent by (output started at /home/[username]/[site].com/wp-content/plugins/semalt/semalt.php:55) in /home/[username]/[site].com/wp-includes/pluggable.php on line 919 Warning: Cannot modify header information - headers already sent by (output started at /home/[username]/[site].com/wp-content/plugins/semalt/semalt.php:55) in /home/[username]/[site].com/wp-includes/pluggable.php on line 920 [Site Name] ``` * Worse, when I attempt to log on, I get this: * `ERROR: Cookies are blocked due to unexpected output. For help, please see this documentation or try the support forums.` * And I cannot log in. * The main difference between the two sites is that this one uses the Twenty Thirteen theme. * Thanks, * David * Thread Starter [DavidSortOf](https://wordpress.org/support/users/davidsortof/) * (@davidsortof) * [11 years, 2 months ago](https://wordpress.org/support/topic/installed-update-cannot-log-in/#post-5809710) * But, switching to the Twenty Thirteen theme on my other site doesn’t create the problem. : ( * Plugin Author [Alex Moss](https://wordpress.org/support/users/alexmoss/) * (@alexmoss) * [11 years, 2 months ago](https://wordpress.org/support/topic/installed-update-cannot-log-in/#post-5809713) * Are they on the same server? Same versions of WordPress? Very odd * Thread Starter [DavidSortOf](https://wordpress.org/support/users/davidsortof/) * (@davidsortof) * [11 years, 2 months ago](https://wordpress.org/support/topic/installed-update-cannot-log-in/#post-5809715) * Yep, sitting side-by-side on the same server, and both on WP 4.1.1. * Plugin Author [Alex Moss](https://wordpress.org/support/users/alexmoss/) * (@alexmoss) * [11 years, 2 months ago](https://wordpress.org/support/topic/installed-update-cannot-log-in/#post-5809716) * The issue above is just a PHP warning and, although present, should not affect anything else on the site. Have you any caching plugins installed? If so please purge all caches. * Thread Starter [DavidSortOf](https://wordpress.org/support/users/davidsortof/) * (@davidsortof) * [11 years, 2 months ago](https://wordpress.org/support/topic/installed-update-cannot-log-in/#post-5809719) * Nope, no caching plug-ins. I also tried deactivating the other plug-ins, but that didn’t work. * Also, just in case this info helps anyone, per our conversation over email, I deleted the blank line in semalt.php, and that didn’t work either. * Weird that it only happens with one of my websites similarly configured, and specifically with the Semalt Blocker update of around last Thursday. Viewing 15 replies - 1 through 15 (of 26 total) 1 [2](https://wordpress.org/support/topic/installed-update-cannot-log-in/page/2/?output_format=md) [→](https://wordpress.org/support/topic/installed-update-cannot-log-in/page/2/?output_format=md) The topic ‘Installed update, cannot log in!’ is closed to new replies. * ![](https://s.w.org/plugins/geopattern-icon/semalt_ffa929.svg) * [Semalt Blocker](https://wordpress.org/plugins/semalt/) * [Support Threads](https://wordpress.org/support/plugin/semalt/) * [Active Topics](https://wordpress.org/support/plugin/semalt/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/semalt/unresolved/) * [Reviews](https://wordpress.org/support/plugin/semalt/reviews/) ## Tags * [cannot log in](https://wordpress.org/support/topic-tag/cannot-log-in/) * 26 replies * 3 participants * Last reply from: [DavidSortOf](https://wordpress.org/support/users/davidsortof/) * Last activity: [11 years, 1 month ago](https://wordpress.org/support/topic/installed-update-cannot-log-in/page/2/#post-5809787) * Status: resolved