Fatal Error – when trying to activate

To fix this, it would be helpful to see the actual error which prevents the activation.

Could you please add the following to your wp-config.php file:
define( ‘WP_DEBUG’, true );
define( ‘WP_DEBUG_DISPLAY’, false );
define( ‘WP_DEBUG_LOG’, true );
If you then try to activate the plugin, it should create a file called debug.log in your wp-content directory.

If the file doesn’t get created, your server might be configured in a way to prevent new file creation. If so, create an empty file called debug.log yourself in the wp-content directory, make sure it has write permissions set (CHMOD 644 should normally be ok) and try to activate the plugin again.

Open the file and it should contain some error message(s). Please paste the errors you find there in this thread.

Presuming this is a live site (not a test site), after you’ve done that, undo the changes which you made in the wp-config.php file and delete the debug.log file.

Hoping the actual error will help move this forward.

Thanks to @jrf.Do this and let me know.

Thank you for your response, so far I am having trouble getting this to work. Either there is no output, or their is something not working in getting the output to the file. I have followed the instructions above, and I still get no results. I am troubleshooting this to see if I can get some output of some kind, but so far nothing shows in the debug.log.

If you have any other suggestions, great, otherwise I’ll report back after I get something more than just ‘fatal error’.

This is what was in the error log.

[21-Dec-2015 16:25:00 UTC] PHP Fatal error: Out of memory (allocated 262930432) (tried to allocate 72 bytes) in /nfs/c117/h0217/mnt/198351/domains/*********.com/html/wp-includes/wp-db.php on line 2350

Also, I had followed up with my hosting provider and they had me up the allowed memory in the php.ini but I still got the same error…..

Any suggestions?

You could put this in wp-config.php

define('WP_MEMORY_LIMIT', '64M');

Instead of 64M put how much did the host put in php.ini.Let me know.

You could also try with 64M

Yep, I had
define (‘wp_memory_limit’, ’64M’);
in wp-config.php, and just updated it to
define(‘WP_MEMORY_LIMIT’, ’99M’);
and still same error:
Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 83 bytes) in /nfs/c192/h0246/mnt/19456/domains/**********.com/html/wp-includes/wp-db.php on line 2350

The line of code it references is querying the database I believe, and it seems to be returning something to large for the server to handle I guess? There are a lot of comments already in the system of the site I’m trying to install this on, could it be that when the Rating System plugin goes to be activated it calls on all of the comments in the database in such a way that it crashes and gives the fatal error? I’m beyond my expertise in trying to sort this out at the moment, but any help given could be greatly appreciated, thanks.

Yes that is the problem.When the plugin is activated gets all the comments and adds 0 likes and 0 dislikes.I will fix this in next update.Thanks for the help.

Thank you, by the way, any guesses on how I could fix it in the short term, or even if the plugin update may be coming in the next couple days or not? I’m just trying to find a fix in the short term. Either way, I really appreciate your work and efforts. Thank You.

Open the plugin folder.In rating-system.php right at the top should be

//activation hook
include(plugin_dir_path( __FILE__ ).'activation.php');

change it to

//activation hook
//include(plugin_dir_path( __FILE__ ).'activation.php');

and try to activate the plugin.If it activates see if the buttons are working if they don’t you will have to wait for the update.

OK, thanks, trying it now…….

It seems to be working , (yay, great!)

My site seems slower now, I hope/think it’s unrelated. I’ll let you know if anything else pops up (new errors etc).

Thank You!!!

I got the same exact problem with “Fatal error: Allowed memory size exhausted” when trying to activate the plugin.

The suggested solution of commenting out the include code worked.

For your information; We have around 97.000 comments in our database.

Nice plugin by the way. I’ve been looking for a long time for a rating system for comments that just shows a heart and skips the negative rating part. And yours were perfect for the function. Thanks! ??

Thanks for confirming this.We will push the fix in the next update.

Fixed in latest version.