Database is read only after manual failover

Hello Guys.I have a SharePoint 2013 Farm and databases are hosted on remote SQL servers with alwayson configure for HA. 

When i manually failover from primary to secondary, the website for SharePoint convert to Read Only mode. When i try to run the ClearMaintenanceMode powershell, it returns error and specify that a content database is in Read only mode. When i check the database state in SQL Management Studio (Database Properties> Options> State> Database Read-Only), i found it is False 

Any Ideas ?

Thanks