zabbix_server [3804]: ERROR [file:prediction.c,line:712] Something impossible has just happened.
  3804:20200312:235903.152 === Backtrace: ===
  3804:20200312:235903.153 13: /usr/local/sbin/zabbix_server: poller #13 [got 1 values in 0.001764 sec, getting values](zbx_backtrace+0x35) [0x518555]
  3804:20200312:235903.153 12: /usr/local/sbin/zabbix_server: poller #13 [got 1 values in 0.001764 sec, getting values]() [0x51d107]
  3804:20200312:235903.153 11: /usr/local/sbin/zabbix_server: poller #13 [got 1 values in 0.001764 sec, getting values](zbx_forecast+0x4d5) [0x51e935]
  3804:20200312:235903.153 10: /usr/local/sbin/zabbix_server: poller #13 [got 1 values in 0.001764 sec, getting values]() [0x422c50]
  3804:20200312:235903.153 9: /usr/local/sbin/zabbix_server: poller #13 [got 1 values in 0.001764 sec, getting values](evaluate_function+0x2c77) [0x4dd627]
  3804:20200312:235903.153 8: /usr/local/sbin/zabbix_server: poller #13 [got 1 values in 0.001764 sec, getting values](get_value_calculated+0xa3b) [0x44601b]
  3804:20200312:235903.153 7: /usr/local/sbin/zabbix_server: poller #13 [got 1 values in 0.001764 sec, getting values]() [0x43958b]
  3804:20200312:235903.153 6: /usr/local/sbin/zabbix_server: poller #13 [got 1 values in 0.001764 sec, getting values](poller_thread+0xe8) [0x4397a8]
  3804:20200312:235903.153 5: /usr/local/sbin/zabbix_server: poller #13 [got 1 values in 0.001764 sec, getting values](zbx_thread_start+0x3e) [0x52182e]
  3804:20200312:235903.153 4: /usr/local/sbin/zabbix_server: poller #13 [got 1 values in 0.001764 sec, getting values](MAIN_ZABBIX_ENTRY+0x90a) [0x42a7ca]
  3804:20200312:235903.153 3: /usr/local/sbin/zabbix_server: poller #13 [got 1 values in 0.001764 sec, getting values](daemon_start+0x1a3) [0x5180a3]
  3804:20200312:235903.153 2: /usr/local/sbin/zabbix_server: poller #13 [got 1 values in 0.001764 sec, getting values](main+0x3b3) [0x4296b3]
  3804:20200312:235903.153 1: /lib64/libc.so.6(__libc_start_main+0xf5) [0x7f63700fe495]
  3804:20200312:235903.153 0: /usr/local/sbin/zabbix_server: poller #13 [got 1 values in 0.001764 sec, getting values]() [0x4299c6]