One of ThingWorx cluster nodes fails to startup due to I/O error

[L: ERROR] [O: c.t.p.ThingworxDefaultTransaction] [I: ] [U: SuperUser] [S: ] [P: twx3] [T: main] Could not commit the transaction. Rolling back...
[L: WARN] [O: c.m.v.c.i.NewPooledConnection] [I: ] [U: SuperUser] [S: ] [P: twx3] [T: main] [c3p0] A PooledConnection that has already signalled a Connection error is still in use!
[L: WARN] [O: c.m.v.c.i.NewPooledConnection] [I: ] [U: SuperUser] [S: ] [P: twx3] [T: main] [c3p0] Another error has occurred [ org.postgresql.util.PSQLException: This connection has been closed. ] which will not be reported to listeners!
[L: ERROR] [O: c.t.p.PersistenceProviderTransactionManager] [I: ] [U: SuperUser] [S: ] [P: twx3] [T: main] Error occurred during commit for the ThingworxPersistenceProvider persistence provider.
[L: ERROR] [O: c.t.s.ThingWorxServer] [I: ] [U: SuperUser] [S: ] [P: twx3] [T: main] !!!!! Error loading model
[L: WARN] [O: c.t.l.ZookeeperSemaphore] [I: ] [U: SuperUser] [S: ] [P: twx3] [T: main] Attempt to release lock /locking/mutex/loadModelMutex, but no leases are currently held
[L: ERROR] [O: c.t.s.ThingWorxBootstrapper] [I: ] [U: SuperUser] [S: ] [P: twx3] [T: main] *** CRITICAL ERROR ON STARTUP: Unable to initialize and start system: An I/O error occurred while sending to the backend.
[L: ERROR] [O: c.t.s.ThingWorxBootstrapper] [I: ] [U: SuperUser] [S: ] [P: twx3] [T: main] *** Web Application STATE is being set to ERROR! ***
[L: WARN] [O: c.t.l.ZookeeperSemaphore] [I: ] [U: SuperUser] [S: ] [P: twx3] [T: main] Attempt to release lock /locking/semaphore/ThingWorxServerloadModelSemaphore, but no leases are currently held
[L: INFO] [O: c.t.s.ThingWorxServer] [I: ] [U: SuperUser] [S: ] [P: twx3] [T: main] >>>>>>> PLATFORM SHUTDOWN START <<<<<<<<<