A user reported that Pinpoint booking system suddenly stopped working. OPTe support responded and confirmed error 500 on the reservations & calendar admin areas including the front end calendar.
The problem was an unknown conflict with the latest version of Yoast SEO Premium Version 4.4.
Temporary fix: Disable Yoast Premium SEO & Enable Yoast SEO Standard until the conflict is resolved.
Plugin Versions:
Pinpoint Booking System Pro: 2.2.7
Yoast SEO Premium: 4.4