If you have harvested a lot of COUNTER usage data the usage data provider summery does not work any more. /cgi-bin/koha/erm/eusage/usage_data_providers/summary Error message : Something went wrong: SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data
We would like to demonstrate the error and discuss this feature in Marseille (Hackfest 2026)