State Not Found Error

[eagle-13]

There is another exception while launching LTI apps.
At game.php, it checks validation, but it occurs exception
IMSGlobal\LTI\LTI_Exception: State not found in E:\xampp\htdocs\lti\src\vendor\imsglobal\lti-1p3-tool\src\lti\LTI_Message_Launch.php on line 243
I debugged and found the cookie is not set.
What is the problem?
How to fix it?

[sunny047]

@eagle-13 Any update on this? I am getting the same error.

[kishormarathe-P0464]

@sunny047 try commenting the state validation logic, and it will pass through