trunk balancing with chan dongle

[hithamadel2004]

hi
I installed asterisk 16.16.1 with chan-dongle (10 dongles)
and try use trunk balancing 1.1.1.5 to balance between 10 dongles trunks
i make load ratio each trunk 10 to 1(trunk 1 load ratio 10, trunk 2 load ratio 9 ...etc to trunk 10 load ratio 1)
and choose new balance trunk in out bound
but when make calls give me all-circuits-busy-now
in asterisk logs
[2021-08-19 20:02:16] WARNING[6892][C-00000001]: res_agi.c:2223 launch_script: Failed to execute '/var/lib/asterisk/agi-bin/trunkbalance.php': File does not exist.
[2021-08-19 20:02:16] WARNING[6892][C-00000001]: channel.c:6248 request_channel: No channel type registered for 'Balancedtrunk'
[2021-08-19 20:02:16] WARNING[6892][C-00000001]: app_dial.c:2576 dial_exec_full: Unable to create channel of type 'Balancedtrunk' (cause 66 - Channel not implemented)
[2021-08-19 20:02:16] WARNING[6892][C-00000001]: res_agi.c:2223 launch_script: Failed to execute '/var/lib/asterisk/agi-bin/trunkbalance.php': File does not exist.
[2021-08-19 20:02:16] WARNING[6892][C-00000001]: channel.c:6248 request_channel: No channel type registered for 'Balancedtrunk'
[2021-08-19 20:02:16] WARNING[6892][C-00000001]: app_dial.c:2576 dial_exec_full: Unable to create channel of type 'Balancedtrunk' (cause 66 - Channel not implemented)
[2021-08-19 20:02:16] WARNING[6892][C-00000001]: res_agi.c:2223 launch_script: Failed to execute '/var/lib/asterisk/agi-bin/trunkbalance.php': File does not exist.
[2021-08-19 20:02:16] WARNING[6892][C-00000001]: channel.c:6248 request_channel: No channel type registered for 'Balancedtrunk'
[2021-08-19 20:02:16] WARNING[6892][C-00000001]: app_dial.c:2576 dial_exec_full: Unable to create channel of type 'Balancedtrunk' (cause 66 - Channel not implemented)
[2021-08-19 20:02:16] WARNING[6892][C-00000001]: res_agi.c:2223 launch_script: Failed to execute '/var/lib/asterisk/agi-bin/trunkbalance.php': File does not exist.
[2021-08-19 20:02:16] WARNING[6892][C-00000001]: channel.c:6248 request_channel: No channel type registered for 'Balancedtrunk'
[2021-08-19 20:02:16] WARNING[6892][C-00000001]: app_dial.c:2576 dial_exec_full: Unable to create channel of type 'Balancedtrunk' (cause 66 - Channel not implemented)
[2021-08-19 20:02:16] WARNING[6892][C-00000001]: res_agi.c:2223 launch_script: Failed to execute '/var/lib/asterisk/agi-bin/trunkbalance.php': File does not exist.
[2021-08-19 20:02:16] WARNING[6892][C-00000001]: channel.c:6248 request_channel: No channel type registered for 'Balancedtrunk'
[2021-08-19 20:02:16] WARNING[6892][C-00000001]: app_dial.c:2576 dial_exec_full: Unable to create channel of type 'Balancedtrunk' (cause 66 - Channel not implemented)
[2021-08-19 20:02:16] WARNING[6892][C-00000001]: res_agi.c:2223 launch_script: Failed to execute '/var/lib/asterisk/agi-bin/trunkbalance.php': File does not exist.
[2021-08-19 20:02:16] WARNING[6892][C-00000001]: channel.c:6248 request_channel: No channel type registered for 'Balancedtrunk'
[2021-08-19 20:02:16] WARNING[6892][C-00000001]: app_dial.c:2576 dial_exec_full: Unable to create channel of type 'Balancedtrunk' (cause 66 - Channel not implemented)
[2021-08-19 20:02:18] WARNING[6892][C-00000001]: file.c:789 ast_openstream_full: File pls-try-call-later does not exist in any format
[2021-08-19 20:02:18] WARNING[6892][C-00000001]: file.c:1262 ast_streamfile: Unable to open pls-try-call-later (format (ulaw)): No such file or directory
[2021-08-19 20:02:18] WARNING[6892][C-00000001]: app_playback.c:497 playback_exec: Playback failed on SIP/2023-00000000 for all-circuits-busy-now&pls-try-call-later, noanswer
[2021-08-19 20:02:18] WARNING[6892][C-00000001]: channel.c:4968 ast_prod: Prodding channel 'SIP/2023-00000000' failed
what is problem?