Hi,
on the website, we installed a few RegularLab extensions, and since today we have this error message on the front-end
Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 12288 bytes) in /public_html/libraries/regularlabs/src/ParametersNew.php on line 121
Can be a number of reasons/extensions depending on how you use them.
Maybe you are using Articles Anywhere in a way that causes some kind of looping.
Or a really heavy set of replacements in ReReplacer.
Or custom PHP code via Sourcerer.
Or...
See if you can narrow it sown by disabling all the Regular Labs system plugins (except the Regular Labs Library), and enabling them one-by-one.