Solution:
At a first glimpse it s most probable that the plugin (fresh-framework) was recently updated…
Deactivating removes its functions, enabling it includes the functions but breaks the page
Suggest to check the plugin’s history and restore to a previous version. If that’s not possible you probably have to wait until they get the error fixed (or try to fix it yourself) But as you see most probably the problem comes frm the fresh-framework update
PD: PHP Notice are not errors, the errors are only PHP Warning & PHP Error As you see from the PHP warnings it seems that there is a problem with the filepath where it’s trying to write freshizer.php line 248
you can temporary check which path it tries to write to by adding a wordpress log message or echoing the path….