Have you tried:
– deactivating all plugins to see if this resolves the problem? If this works, re-activate the plugins one by one until you find the problematic plugin(s).
– switching to the Twenty Ten theme to rule out any theme-specific problems?
– resetting the plugins folder by FTP or PhpMyAdmin? Sometimes, an apparently inactive plugin can still cause problems.
– re-uploading the wp-admin and wp-includes folders from a fresh download of WordPress?
– increasing the memory available to PHP?
http://wordpress.org/support/topic/253495#post-1017842
Thread Starter
itos
(@itos)
Thanks for the help and interest.
– switching to the Twenty Ten theme to rule out any theme-specific problems?
* Did that and still the same errors.
– increasing the memory available to PHP?
* I have it incresed to 256MB the maximum my hosting permits.
I solved the error of “ISO-8859-1” changing from “ISO-8859-1” to “utf-8” in feed-rss2.php file under wp-includes folder.
My blog is in spanish and aparrently one of my problems is with the sign “´” in words. So I rewrote a letter without that symbol that was giving errors and magically it solved most errors.
Still I have this error:
line 1, column 13259: Undefined channel element: div (2 occurrences)
http://www.jefefinal.com/feed/
I will try the other solutions of deactivating plugins.
Many Thanks again.
Thread Starter
itos
(@itos)
Update: Deactivating all plugins makes my RSS valid. I will try one by one (have 50 uf!) activating to see which causes the problem in feed. Will post an update when I discover.
Thread Starter
itos
(@itos)
The plugins that causes problems are: RSS Add Images to Post and Adsense Optimizer (3.0). While using WP RSS Images (1.0) doesn´t causes problems and now my feed is completely valid wihout any error or warning. But now I have to look for another solution to Adsense for my posts and homepage. For the widgets I just use the code not plugins.
Hope this helps another person with the same problem.