"Malformed" parameter:templateValues

[FPit]

Hi, 
we have a plenty Looker studio reports, the most of them are just a copy from one template. All of them work fine except the only one, where we have got this error today:

Data Set Configuration Error
Looker Studio cannot connect to your data set.

Sorry, we encountered an error and were unable to complete your request.

Malformed parameter:templateValues
Error ID: 7543b303

Any tips what to do?
Thnx, Martina from FP

[FPit]

Hi all,
we have found out the reason: It was apostrophe character in report filter (Report settings -> Filter on this report).