Seems to be an error in the actual java file of the Mindsphere package. You could check whether there are certain Mendix marketplace modules that have an update, or check the userlib folder for java files that are used by the mindsphere module that have multiple versions.
If you want to get more insight in the actual java error, you would have to run your project through Eclipse. Docs on how to do that can be found on: https://docs.mendix.com/refguide/using-eclipse
There is a breaking change within Mendix between Version 8 and 9. Longtime Mendix had provided some compatiblity modus, but it looks like that this service is over.
Because of the breaking change one parameter name in one of the JavaActions needs to be changed.
Please open the file <PROJECT_DIR>\javsource\mindspheresinglesignon\actions\MindSphereScheduledAccessTokenConnector.java
Search for a parameter called TenantParameter1
PLEASE CHANGE THE PARAMETER to Tenant and save your file:
Back in Mendix Studio Pro make sure to synchronize your filesystem.
Now you can restart your project and it should work.