Our staff use Memtime (formerly TimeBro) to track working time, and we have the Zoho Projects integration installed, so that the entries are mapped to Projects/Tasks/Issues automatically. 

Today, we've started getting the following error when attempting to sync entries to Projects:

* Status Code: 500
* Method: PATCH
* Title: INTERNAL_SERVER_ERROR
* Error Type: OPERATIONAL_VALIDATION_ERROR
* Details: ** 0: **
* Message: Internal server error. Please contact support@eu.zohoprojects.com for further details. *** Message Key: zp.general.error

We have confirmed that the app is up to date, and the integration has been authenticated, but there is no change in response when a sync is attempted.