Are you sure it was 1.4.1 and not 1.4? Version 1.4 had a bug that could cause a problem like that on sites that are running an old version of PHP.
Also, are there any new messages in the error log from when you installed the upgrade? In particular, any that mention this plugin?
It was 1.4.1. I actually tried to change the plug-in to use the fix recommended for 1.4 where you put the numbers in single quotes but it didn’t help. The only new message in my php log is:
PHP Warning: mysql_real_escape_string() expects parameter 1 to be string, object given in /home/onenamek/public_html/wp/wp-includes/wp-db.php on line 1129
I don’t know if it was caused by this plug-in. Sorry I can’t be more helpful.
Hmm, I don’t think that message is related to this plugin. It doesn’t do anything special with MySQL.
Are there any other logs in the WordPress directory? Depending on PHP configuration, sometimes messages can get logged in the wrong place if an errors happens before WordPress is fully loaded.
Also, what’s the memory usage of the site? The latest release uses slightly more memory than the previous one, so if the site was close to the PHP memory limit, installing the update might have been enough to push it over. You can use this plugin to view memory usage (it’s old, but it should still work):
https://ww.wp.xz.cn/plugins/wp-memory-usage/
(Putting the numbers in quotes is not the correct fix, but that particular bug was only in 1.4 anyway.)
I re-installed 1.4.1 and the same thing happened (no access to dashboard, shows guild-dev.org unavailable). I have found a message in a file called /public_html/wp/wp-admin/error_log:
[20-Jul-2016 18:26:34 UTC] PHP Parse error: syntax error, unexpected ‘[‘, expecting ‘)’ in /home/onenamek/public_html/wp/wp-content/plugins/error-log-monitor/Elm/Plugin.php on line 83
This message also occurred when I first tried to install the release this morning. Hopefully this is more helpful!
Thank you, that helps a lot! I’ve patched that bug now. Please try the development version:
https://downloads.wp.xz.cn/plugin/error-log-monitor.zip
Back in business. Thanks very much for the quick response.