Issues observed in HCM Flow on DC

During HCM on Stage today, I have observed below issues:

1. In Recruit flow, all work flow steps are enabled from beginning. Plus certain steps text is displayed bold. PFA screen shot 1.png
2. In Employee log-in, during Pre-board tour, content is not displayed for Welcome Message and Attrie and Start Date forms. PFA screen shot 2_1.png, 2_2.png
3. Server error displayed on Eligible Benefits Summery screen. PFA screen shot 3.png and error log

ErrorID : 0
ErrorSource : ControllerAppTier.GetCollection->BenAdminControllerAppTier.GetData->RateCalculationForEnrollment.GetCollection->RateCalculationForEnrollment.GetSegmentCodeAndName->RateCalculationForEnrollment.GetCostFromHealthTier
ErrorMessage: Conversion from string "" to type 'Long' is not valid.
StackTrace: at WORKTERRA.BenAdmin.BenAdminControllerAppTier.GetCollection(BenAdminControllerWebTierEntity objBenAdminControllerWebTierEntity)
at WORKTERRA.ControllerAppTier.GetCollection(Int32 intProjectsId, String strInput)
TargetSite: System.String GetCollection(ValueObjects.BenAdminControllerWebTierEntity)