2.4.4 upgrade caused WAN problems

[telserv]

After upgrading from 2.4.3.1 to 2.4.4, I have an error log. It seems to be associated with the WAN, because I lost connectivity, even though everything on the Dash looked good. A reboot has solved the problem, but the WAN connection is intermittant. I thought the attached PHP_error.txt may be of some use to a developer?

[05-Oct-2018 19:36:55 UTC] PHP Warning: Failed loading Zend extension 'opcache.so' (tried: /usr/local/lib/php/20131226/opcache.so (/usr/local/lib/php/20131226/opcache.so: Undefined symbol "zend_opcode_handlers"), /usr/local/lib/php/20131226/opcache.so.so (Cannot open "/usr/local/lib/php/20131226/opcache.so.so")) in Unknown on line 0
[05-Oct-2018 19:36:55 UTC] PHP Warning: PHP Startup: Unable to load dynamic library 'session.so' (tried: /usr/local/lib/php/20131226/session.so (/usr/local/lib/php/20131226/session.so: Undefined symbol "zval_used_for_init"), /usr/local/lib/php/20131226/session.so.so (Cannot open "/usr/local/lib/php/20131226/session.so.so")) in Unknown on line 0
<downloaded complete file>

[telserv]

A few more hours in, and the WAN is holding up, thankfully.