I have the same issue too and found out all restrofood settings were lost (default reset) and in “Page settings” section all the Restrofood pages point to 1 (same) page, which cause “ERR_TOO_MANY_REDIRECTS”.
Screenshot:
https://prnt.sc/ScXVJQf_Jk24
https://prnt.sc/SJ6gdnYPcU6B (after setup this section, site is fixed)
It happened to me already 2 times, that all restrofood settings were gone (lost/reset), I still dont know the reason, may be after updating to the new version.