Title: Fatal error – call to undefined function Last modified: April 20, 2017 --- # Fatal error – call to undefined function * Resolved [dougvos](https://wordpress.org/support/users/dougvos/) * (@dougvos) * [8 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-91/) * Fatal error: Call to undefined function boolval() in /home/churchwebsite.org/ wp-content/plugins/sermon-manager-for-wordpress/includes/fix-dates.php on line 44 * Using latest version of Sermon Manager. Viewing 10 replies - 1 through 10 (of 10 total) * [Nikola](https://wordpress.org/support/users/nikolam/) * (@nikolam) * [8 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-91/#post-9050934) * Hey there, are you using 2.1.3? * [Nikola](https://wordpress.org/support/users/nikolam/) * (@nikolam) * [8 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-91/#post-9050966) * Hey, I have just pushed a fix for that bug. Can you check if it’s still crashing on 2.1.4? * [alemanm](https://wordpress.org/support/users/alemanm/) * (@alemanm) * [8 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-91/#post-9050995) * Hello- * I’m having the same exact issue. I can’t even get into my wordpress. * Please help! * [trishahdee](https://wordpress.org/support/users/trishahdee/) * (@trishahdee) * [8 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-91/#post-9051393) * Just tried to update to 2.1.4 and I have same issue. * Plugin Author [wpforchurch](https://wordpress.org/support/users/wpforchurch/) * (@wpforchurch) * [8 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-91/#post-9051463) * Hey guys, * Terribly sorry for the trouble! * Would you mind turning debug on via the server wp-config.php file and letting us know what shows up on those blank pages? * Alternatively there may be a message in the error log usually found in the public_html folder of your server/cPanel. * Thanks for your assistance. * [will.johnston](https://wordpress.org/support/users/willjohnston-1/) * (@willjohnston-1) * [8 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-91/#post-9052644) * Call to undefined function boolval() issue using 2.1.4 * [neverprosper](https://wordpress.org/support/users/neverprosper/) * (@neverprosper) * [8 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-91/#post-9053552) * Just to confirm, same problem here. I deactivated all plugins by renaming the plugin folder so I could get back into dashboard. Once I reactivated Sermon Manager the error came back and locked me out again. Repeated process only this time I changed theme before reactivating Sermon Manager but still gave me the error and booted me out of dashboard. Checked for updated WP install and SM version. Currently, I have my original theme and all the plugins except SM running and everything is fine. * Fatal error: Call to undefined function boolval() in /home/churchwebsite.org/ wp-content/plugins/sermon-manager-for-wordpress/includes/fix-dates.php on line 44 * [JimHardy1234](https://wordpress.org/support/users/jimhardy1234/) * (@jimhardy1234) * [8 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-91/#post-9053644) * I can confirm the exact same problem based on an upgrade to 2.1.4 just a couple of hours ago. Is there a way to downgrade to the previous version which worked just fine for me? * [JimHardy1234](https://wordpress.org/support/users/jimhardy1234/) * (@jimhardy1234) * [8 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-91/#post-9053808) * And can confirm that upgrading PHP to v 5.6 resolves the error. * [Nikola](https://wordpress.org/support/users/nikolam/) * (@nikolam) * [8 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-91/#post-9054543) * Hey there, this has been fixed in 2.1.5 * Affected users can safely remove Sermon Manager directory via FTP (`wp-content/ plugins/sermon-manager-for-wordpress`) and install the latest version from wordpress. org * No data will be lost. Viewing 10 replies - 1 through 10 (of 10 total) The topic ‘Fatal error – call to undefined function’ is closed to new replies. * ![](https://s.w.org/plugins/geopattern-icon/sermon-manager-for-wordpress_688896. svg) * [Sermon Manager](https://wordpress.org/plugins/sermon-manager-for-wordpress/) * [Frequently Asked Questions](https://wordpress.org/plugins/sermon-manager-for-wordpress/#faq) * [Support Threads](https://wordpress.org/support/plugin/sermon-manager-for-wordpress/) * [Active Topics](https://wordpress.org/support/plugin/sermon-manager-for-wordpress/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/sermon-manager-for-wordpress/unresolved/) * [Reviews](https://wordpress.org/support/plugin/sermon-manager-for-wordpress/reviews/) * 10 replies * 8 participants * Last reply from: [Nikola](https://wordpress.org/support/users/nikolam/) * Last activity: [8 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-91/#post-9054543) * Status: resolved