httpd[5756]: [error] mod_jk child workerEnv in error state 1

I found these wrong messages , such as : What should I do ? Many thanks！！ [root@3600:Active] config cat /var/log/httpd/httpd_errors May 19 08:23:12 3600 httpd[4891]: [error] mod_jk child init 1 0 May 19 08:23:12 3600 httpd[4891]: [error] mod_jk child workerEnv in error state 1 May 19 08:28:13 3600 httpd[4958]: [error] mod_jk child workerEnv in error state 1 May 19 09:23:57 3600 httpd[5747]: [error] jk2_init() Can't find child 5747 in scoreboard May 19 09:23:57 3600 httpd[5747]: [error] mod_jk child init 1 -2 May 19 09:24:03 3600 httpd[4958]: [error] [client 10.XXX.XX.XXX] AUTHCACHE Cannot get random stream from TMM, referer: https://XXX.XX.10.1/ May 19 09:24:03 3600 httpd[5750]: [error] mod_jk child workerEnv in error state 1 May 19 09:24:04 3600 httpd[5751]: [error] mod_jk child workerEnv in error state 1 May 19 09:24:04 3600 httpd[5752]: [error] jk2_init() Can't find child 5752 in scoreboard May 19 09:24:04 3600 httpd[5752]: [error] mod_jk child init 1 -2 May 19 09:24:05 3600 httpd[5753]: [error] mod_jk child workerEnv in error state 1 May 19 09:24:05 3600 httpd[5754]: [error] jk2_init() Can't find child 5754 in scoreboard May 19 09:24:05 3600 httpd[5754]: [error] mod_jk child init 1 -2 May 19 09:24:05 3600 httpd[5755]: [error] jk2_init() Can't find child 5755 in scoreboard May 19 09:24:05 3600 httpd[5755]: [error] mod_jk child init 1 -2 May 19 09:24:05 3600 httpd[5756]: [error] mod_jk child workerEnv in error state 1