File Manager NOT Showing file and folders

Hello,
I Just installed cyberpanel on my new server. but currently i’m facing file manager error. i can’t see any files and folder on my file manager.
Screenshot:

Error Log:
2018-05-12 20:33:31.014484 [ERROR] Start [learnan]: failed to start the # 1 of 1 instances.
2018-05-12 20:33:31.014491 [WARN] [UDS://tmp/lshttpd/learnan.sock] Can not start this external application.
2018-05-12 20:33:32.016970 [INFO] [UDS://tmp/lshttpd/learnan.sock] Error Timeout, restart and try again!
2018-05-12 20:33:32.017003 [ERROR] Start [learnan]: failed to start the # 1 of 1 instances.
2018-05-12 20:33:32.017018 [WARN] [UDS://tmp/lshttpd/learnan.sock] Can not start this external application.
2018-05-12 20:33:33.019273 [INFO] [UDS://tmp/lshttpd/learnan.sock] Error Timeout, restart and try again!
2018-05-12 20:33:33.019298 [ERROR] Start [learnan]: failed to start the # 1 of 1 instances.
2018-05-12 20:33:33.019306 [WARN] [UDS://tmp/lshttpd/learnan.sock] Can not start this external application.
2018-05-12 20:33:34.021537 [INFO] [UDS://tmp/lshttpd/learnan.sock] Error Timeout, restart and try again!
2018-05-12 20:33:34.021569 [ERROR] Start [learnan]: failed to start the # 1 of 1 instances.
2018-05-12 20:33:34.021578 [WARN] [UDS://tmp/lshttpd/learnan.sock] Can not start this external application.
2018-05-12 20:33:35.024210 [INFO] [UDS://tmp/lshttpd/learnan.sock] Error Timeout, restart and try again!
2018-05-12 20:33:35.024231 [ERROR] Start [learnan]: failed to start the # 1 of 1 instances.
2018-05-12 20:33:35.024239 [WARN] [UDS://tmp/lshttpd/learnan.sock] Can not start this external application.
2018-05-12 20:33:36.026586 [INFO] [UDS://tmp/lshttpd/learnan.sock] Error Timeout, restart and try again!
2018-05-12 20:33:36.026608 [ERROR] Start [learnan]: failed to start the # 1 of 1 instances.
2018-05-12 20:33:36.026616 [WARN] [UDS://tmp/lshttpd/learnan.sock] Can not start this external application.
2018-05-12 20:33:37.028891 [INFO] [UDS://tmp/lshttpd/learnan.sock] Error Timeout, restart and try again!
2018-05-12 20:33:37.028924 [ERROR] Start [learnan]: failed to start the # 1 of 1 instances.
2018-05-12 20:33:37.028940 [WARN] [UDS://tmp/lshttpd/learnan.sock] Can not start this external application.
2018-05-12 20:33:38.030981 [INFO] [UDS://tmp/lshttpd/learnan.sock] Error Timeout, restart and try again!
2018-05-12 20:33:38.031002 [ERROR] Start [learnan]: failed to start the # 1 of 1 instances.
2018-05-12 20:33:38.031009 [WARN] [UDS://tmp/lshttpd/learnan.sock] Can not start this external application.
2018-05-12 20:33:39.033016 [INFO] [UDS://tmp/lshttpd/learnan.sock] Error Timeout, restart and try again!
2018-05-12 20:33:39.033038 [ERROR] Start [learnan]: failed to start the # 1 of 1 instances.
2018-05-12 20:33:39.033045 [WARN] [UDS://tmp/lshttpd/learnan.sock] Can not start this external application.
2018-05-12 20:33:40.036435 [INFO] [UDS://tmp/lshttpd/learnan.sock] Error Timeout, restart and try again!
2018-05-12 20:33:40.036469 [ERROR] Start [learnan]: failed to start the # 1 of 1 instances.
2018-05-12 20:33:40.036483 [WARN] [UDS://tmp/lshttpd/learnan.sock] Can not start this external application.
2018-05-12 20:33:41.052618 [INFO] [UDS://tmp/lshttpd/learnan.sock] Error Timeout, restart and try again!
2018-05-12 20:33:41.052659 [ERROR] Start [learnan]: failed to start the # 1 of 1 instances.
2018-05-12 20:33:41.052670 [WARN] [UDS://tmp/lshttpd/learnan.sock] Can not start this external application.
2018-05-12 20:33:42.054829 [INFO] [UDS://tmp/lshttpd/learnan.sock] Error Timeout, restart and try again!
2018-05-12 20:33:42.054851 [ERROR] Start [learnan]: failed to start the # 1 of 1 instances.
2018-05-12 20:33:42.054858 [WARN] [UDS://tmp/lshttpd/learnan.sock] Can not start this external application.
2018-05-12 20:33:43.056931 [INFO] [UDS://tmp/lshttpd/learnan.sock] Error Timeout, restart and try again!
2018-05-12 20:33:43.056955 [ERROR] Start [learnan]: failed to start the # 1 of 1 instances.
2018-05-12 20:33:43.056968 [WARN] [UDS://tmp/lshttpd/learnan.sock] Can not start this external application.
2018-05-12 20:33:44.059328 [INFO] [UDS://tmp/lshttpd/learnan.sock] Error Timeout, restart and try again!
2018-05-12 20:33:44.059352 [ERROR] Start [learnan]: failed to start the # 1 of 1 instances.
2018-05-12 20:33:44.059360 [WARN] [UDS://tmp/lshttpd/learnan.sock] Can not start this external application.
2018-05-12 20:33:45.061966 [INFO] [UDS://tmp/lshttpd/learnan.sock] Error Timeout, restart and try again!
2018-05-12 20:33:45.061999 [ERROR] Start [learnan]: failed to start the # 1 of 1 instances.
2018-05-12 20:33:45.062014 [WARN] [UDS://tmp/lshttpd/learnan.sock] Can not start this external application.
2018-05-12 20:33:46.069131 [INFO] [UDS://tmp/lshttpd/learnan.sock] Error Timeout, restart and try again!
2018-05-12 20:33:46.167204 [ERROR] Start [learnan]: failed to start the # 1 of 1 instances.
2018-05-12 20:33:46.167234 [WARN] [UDS://tmp/lshttpd/learnan.sock] Can not start this external application.
2018-05-12 20:33:47.069330 [INFO] [UDS://tmp/lshttpd/learnan.sock] Error Timeout, restart and try again!
2018-05-12 20:33:47.069364 [ERROR] Start [learnan]: failed to start the # 1 of 1 instances.
2018-05-12 20:33:47.069380 [WARN] [UDS://tmp/lshttpd/learnan.sock] Can not start this external application.

Please Help Thank You

Create a ticket.