Error خطا

weblogic.common.resourcepool.ResourceDisabledException: Pool ResearchDS is suspended. Cannot allocate resources to applications. It was suspended at Wed Jan 27 14:08:54 IRST 2021 because of 2 consecutive connect failures. Last connect attempt failed at Wed Jan 27 19:17:29 IRST 2021 because of weblogic.common.ResourceException: weblogic.common.ResourceException: Could not create pool connection for datasource 'ResearchDS'. The DBMS driver exception was: Cannot open database "research" requested by the login. The login failed. ClientConnectionId:501b3cea-5718-4979-a962-8db5542a5d57. Last connection created successfully at Wed Jan 27 13:59:51 IRST 2021.