See https://demo.matomo.cloud/index.php?module=Overlay&period=month&date=today&idSite=1#?l=https$3A$2F$2Fdivezone.net$2Fdiving$2Findonesia$3F__prod_demo$3D1$26__enterprise_demo_idsite$3D1

seeing this error

When we remove the report only mode in #17923 this could break the overlay feature.

Not really sure what the problem is there?