:/home/container$ $(pwd)/alpine/opt/cfx-server/ld-musl-x86_64.so.1 --library-path "$(pwd)/alpine/usr/lib/v8/:$(pwd)/alpine/lib/:$(pwd)/alpine/usr/lib/" -- $(pwd)/alpine/opt/cfx-server/FXServer +set citizen_dir $(pwd)/alpine/opt/cfx-server/citizen/ +set sv_licenseKey ${FIVEM_LICENSE} +set steam_webApiKey ${STEAM_WEBAPIKEY} +set sv_maxplayers ${MAX_PLAYERS} +set serverProfile default +set txAdminPort ${TXADMIN_PORT} $( [ "$TXADMIN_ENABLE" == "1" ] printf %s '+exec server.cfg' )

/entrypoint.sh: line 12: [: missing `]'
Stacktrace:
/proc/self/maps:
[    c-server-monitor]   _______  ______
[    c-server-monitor]  |  ___\ \/ / ___|  ___ _ ____   _____ _ __
[    c-server-monitor]  | |_   \  /\___ \ / _ \ '__\ \ / / _ \ '__|
[    c-server-monitor]  |  _|  /  \ ___) |  __/ |   \ V /  __/ |
[    c-server-monitor]  |_|   /_/\_\____/ \___|_|    \_/ \___|_|
[    c-server-monitor] -------------------------------- monitor ---
[    c-server-monitor]
40270000-40290000 rwxp 00000000 00:00 0
40e8d000-40e9d000 rwxp 00000000 00:00 0
1c00000000-1c00003000 rw-p 00000000 00:00 0
1c00003000-1c00004000 ---p 00000000 00:00 0
[    c-scripting-core] Creating script environments for _cfx_internal
1c00004000-1c00014000 r-xp 00000000 00:00 0
1c00014000-1c0003f000 ---p 00000000 00:00 0
1c0003f000-1c08000000 ---p 00000000 00:00 0
1c08000000-1c08021000 r--p 00000000 00:00 0
1c08021000-1c08040000 ---p 00000000 00:00 0
1c08040000-1c080cd000 rw-p 00000000 00:00 0
1c080cd000-1c08100000 ---p 00000000 00:00 0
1c08100000-1c08103000 rw-p 00000000 00:00 0
1c08103000-1c08140000 ---p 00000000 00:00 0
1c08140000-1c08180000 rw-p 00000000 00:00 0
1c08180000-1d00000000 ---p 00000000 00:00 0
555556e4a000-555556e4b000 ---p 00000000 00:00 0                          [heap]
555556e4b000-555556e59000 rw-p 00000000 00:00 0                          [heap]
7f25d8340000-7f25d860d000 r--p 00000000 09:02 101851461                  /home/container/alpine/opt/cfx-server/citizen/clr2/lib/mono/4.5/System.dll
7f25d860d000-7f25d8627000 rw-p 00000000 00:00 0
7f25d8627000-7f25d8688000 r--p 00000000 09:02 101851472                  /home/container/alpine/opt/cfx-server/citizen/clr2/lib/mono/4.5/MsgPack.dll
7f25d8688000-7f25d86c1000 rw-p 00000000 00:00 0
7f25d8897000-7f25d8955000 rw-p 00000000 00:00 0
7f25d8955000-7f25d89c7000 r--p 00000000 09:02 101851303                  /home/container/alpine/opt/cfx-server/citizen/clr2/lib/mono/4.5/System.Reflection.Metadata.dll
7f25d89c7000-7f25d8a91000 rw-p 00000000 00:00 0
7f25d8a92000-7f25d8a98000 rw-p 00000000 00:00 0
Unhandled Exception:
System.NullReferenceException: Object reference not set to an instance of an object
Unhandled exception in Mono script environment: System.NullReferenceException: Object reference not set to an instance of an object
(null)Terminated

Hey there. Could you try restoring default startup command in server control panel > settings page.