W3-total-cache

I’m getting the same error this morning, also referring to line 64.

There is no other error on the page? That error signifies that some other issue occurred. Can either of you submit a bug submission form from the support tab of the plugin if you’re still having issues with the latest release?

Open wp-config.php

Go to line 10 or so and

Find this

ini_set('display_errors', '1');

and update to this:

ini_set('display_errors', '0');

Cheers!

I don’t have that line in my wp-config.php but I found another solution that worked for me here:

https://www.ads-software.com/support/topic/hide-php-error-message?replies=4#post-2303320

Just add following at the top of wp-config.php after <?php

ini_set('display_errors', '0');

That thread essentially also suggested same thing.

There’s something else going on with your site and you should check your web server error log to uncover the actual issue.