I am calling server functions with xasync = true and I still get this error message.
Synchronous function execution timed out. Use asynchronous execution instead, or ensure the execution duration doesn't exceed 30 seconds.\nError Code: 408
TL;DR
Developers are encountering a timeout error when calling server functions with xasync = true. The error suggests using asynchronous execution instead or ensuring the execution time is under 30 seconds.