Following a recent upgrade to our FinancialForce PSA System we are no longer able to deploy into production certain APEX Classes (message below) Any of our test classes that creat a Contact Record are experiencing this issue. We tried Setup > APEX Classes > Compile All Classes and Setup > APEX Triggers > Compile All Triggers without any success. PSA has not been able to assist and have indicated that the issue is related to the following: https://success.salesforce.com/issues_view?id=a1p3A000000mCXpQAM

As PSA is a managed package we have absolutley no control over the trigger that is causin this. Any help would be appreciated?

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System.DmlException: Insert failed. First exception on row 0; first error: CANNOT_INSERT_UPDATE_ACTIVATE_ENTITY, pse.ContactTrigger: execution of BeforeInsert caused by: line 48, column 22: Dependent class is invalid and needs recompilation: Class pse.SearchResourcesGeoLocationManager : Dependent class is invalid and needs recompilation: Class pse.MockHttpResponseGeneratorForGeolocation : Dependent class is invalid and needs recompilation: Class pse.ExternalAPICredentialService : Dependent class is invalid and needs recompilation: Class pse.Application : Dependent class is invalid and needs recompilation: Class pse.TimecardHeaderSelector : Variable does not exist: LastReferencedDate: [] 
Stack Trace: Class.RWW_TestHelper.getContact: line 143, column 1 Class.RWW_TestHelperTest.testGetContact: line 28, column 1
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