I am currently grappling with an issue following the upgrade from FileMaker Server 17 to FileMaker Server 2023. Specifically, we are encountering difficulties accessing and manipulating data through the FileMaker PHP-API. The error message 'XML error: Not well-formed (invalid token) at line 1' consistently appears, hindering our system's functionality.
In light of this challenge, we are reaching out to seek your expertise and guidance on potential solutions. Have there been any reported compatibility issues between the FileMaker PHP-API and FileMaker Server 2023, and are there recommended steps to address the 'XML error' we are encountering? Your timely assistance in resolving this matter is highly appreciated.