Platform blocks access

back and forth the platform hangs and I have to restart the vps to go back. below an excerpt from the log

2019-05-06 08:24:58  WARN: An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception. - Too many open files - IOException (...)
2019-05-06 08:24:58  INFO: [cb69127d] connected
...
2019-05-06 08:24:58  INFO: [8002ca7e] connected
2019-05-06 08:24:58  WARN: An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception. - Too many open files - IOException (...)
2019-05-06 08:24:58  WARN: An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception. - Too many open files - IOException (...)
2019-05-06 08:24:58  WARN: Too many open files - IOException (...)
2019-05-06 08:24:59  WARN: An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception. - Too many open files - IOException (...)
2019-05-06 08:24:59  WARN: An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception. - Too many open files - IOException (...)
2019-05-06 13:25:12  INFO: [7092f183: 5001 > 216.250.125.110] HEX: 4f4e
2019-05-06 13:25:31  WARN: Update device status error - HikariPool-1 - Connection is not available, request timed out after 30000ms. - SQLTransientConnectionException (... < QueryBuilder:59 < *:135 < DataManager:337 < DeviceManager:251 < ...)
2019-05-06 13:25:42  WARN: Update device status error - HikariPool-1 - Connection is not available, request timed out after 30000ms. - SQLTransientConnectionException (... < QueryBuilder:59 < *:135 < DataManager:337 < DeviceManager:251 < ...)
2019-05-06 13:25:42  INFO: [ec5c1a54: 5001 > 216.250.125.110] HEX: 4f4e
2019-05-06 13:25:42  WARN: Update device status error - HikariPool-1 - Connection is not available, request timed out after 30004ms. - SQLTransientConnectionException (... < QueryBuilder:59 < *:135 < DataManager:337 < DeviceManager:251 < ...)
Anton Tananaev6 years ago

I would recommend you to search for thread about "Too many open files".