Hello and thank you in advance for anyone that might have some insight on this to offer.
I have had W3 Total Cache activated for 3 days and everything was fine. All of a sudden late last night the backend of WordPress became unavailable with the PHP fatal error:
Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 1819840 bytes) in...
When I remove:
db.php object-cache.php advanced-cache.php
from the wp-content folder, wp-admin becomes accessible again. Except a few of the meta boxes on the dashboard show this error instead of their data (i.e. the plugin meta box). If an action from W3 Total Cache is initiated it recreates the three files mentioned above and wp-admin becomes unavailable again (this even happens from trying to deactivate the plugin from the plugin screen. When I deactivate it by changing the directory name via FTP everything returns to normal.
An important thing to mention is that most Google search results for this error talk about the memory limit:
define( 'WP_MEMORY_LIMIT', '64M' );
However my WP_MEMORY_LIMIT is set to 64M and the number 134217728 bytes equals 128M. The only thing I have set to 128M is PHP Post Max Size.
I suspect this is not actually the fault of W3 Total Cache alone. The site is running WPML, WooCommerce and several other heavy plugins.
If anyone can help point me in the correct direction that would be great. I could increase PHP Post Max Size but I don't think I should have to.
W3 Total Cache is AWESOME. I would love to learn everything there is to know about it so I can always use it on projects.