We are using Moodle 3.5.6+ (Build: 20190614)
Edwiser RemUI 3.5.9 as the default theme and Clean for legacy, tablet and mobile,
However the localcache/theme/boost/css folder is filling up with a new css file every minute to the point that eventually we get a warning from our host that our disk usage is too high - over 90%. See screenshot attached.
We perform a "Clear theme Cache" in moodle and all these files disappear, but start building up immediately again.
Can I uninstall the Boost theme as a quick fix? Or should I be looking somewhere else for a solution? I'm confused as to why the Boost theme's cache is being used when we don't have that theme selected at all.
We have a VPS managed server:
cPanel Version 82.0 (build 16)
Apache Version 2.4.41
PHP Version 7.1.32
Operating System linux