MongoDB: UnhandledPromiseRejectionWarning: MongoError: Cannot use a session that has ended

(node:11104) UnhandledPromiseRejectionWarning: MongoError: Cannot use a session that has ended
    at applySession (E:\work_space\enforce\mc\cloudenforce\opcsec\contrail-web-core\node_modules\mongodb\lib\core\sessions.js:707:12)
    at _command (E:\work_space\enforce\mc\cloudenforce\opcsec\contrail-web-core\node_modules\mongodb\lib\core\wireprotocol\command.js:58:17)
    at command (E:\work_space\enforce\mc\cloudenforce\opcsec\contrail-web-core\node_modules\mongodb\lib\core\wireprotocol\command.js:28:5)
    at writeCommand (E:\work_space\enforce\mc\cloudenforce\opcsec\contrail-web-core\node_modules\mongodb\lib\core\wireprotocol\write_command.js:47:3)
    at Object.insert (E:\work_space\enforce\mc\cloudenforce\opcsec\contrail-web-core\node_modules\mongodb\lib\core\wireprotocol\index.js:6:5)
    at Connection.insert (E:\work_space\enforce\mc\cloudenforce\opcsec\contrail-web-core\node_modules\mongodb\lib\cmap\connection.js:178:8)
    at E:\work_space\enforce\mc\cloudenforce\opcsec\contrail-web-core\node_modules\mongodb\lib\core\sdam\server.js:454:13
    at Object.callback (E:\work_space\enforce\mc\cloudenforce\opcsec\contrail-web-core\node_modules\mongodb\lib\cmap\connection_pool.js:351:7)
    at E:\work_space\enforce\mc\cloudenforce\opcsec\contrail-web-core\node_modules\mongodb\lib\cmap\connection_pool.js:505:23
    at E:\work_space\enforce\mc\cloudenforce\opcsec\contrail-web-core\node_modules\mongodb\lib\cmap\connection_pool.js:431:7
    at callback (E:\work_space\enforce\mc\cloudenforce\opcsec\contrail-web-core\node_modules\mongodb\lib\core\connection\connect.js:97:5)
    at E:\work_space\enforce\mc\cloudenforce\opcsec\contrail-web-core\node_modules\mongodb\lib\core\connection\connect.js:169:5
    at E:\work_space\enforce\mc\cloudenforce\opcsec\contrail-web-core\node_modules\mongodb\lib\core\connection\connect.js:334:7
    at MessageStream.messageHandler (E:\work_space\enforce\mc\cloudenforce\opcsec\contrail-web-core\node_modules\mongodb\lib\cmap\connection.js:270:5)
    at MessageStream.emit (events.js:311:20)
    at processIncomingData (E:\work_space\enforce\mc\cloudenforce\opcsec\contrail-web-core\node_modules\mongodb\lib\cmap\message_stream.js:144:12)
    at MessageStream._write (E:\work_space\enforce\mc\cloudenforce\opcsec\contrail-web-core\node_modules\mongodb\lib\cmap\message_stream.js:42:5)
    at doWrite (_stream_writable.js:441:12)
    at writeOrBuffer (_stream_writable.js:425:5)
    at MessageStream.Writable.write (_stream_writable.js:316:11)
    at Socket.ondata (_stream_readable.js:714:22)
    at Socket.emit (events.js:311:20)
(node:11104) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 4)