The kap_uav.lua script creates and stores a log file called KAP.LOG on the SD card by default. If you copy that from the card and attach it to a response here, I might be able to help.
Here it is! Thanks
1980Jan01 00:00:01 KAP 4.0 started - press MENU to exit
1980Jan01 00:00:01 CHDK 1.6.0-6019 ixus240_elph320hs 102a Oct 7 2021
1980Jan01 00:00:01 Mode:PLAY,Continuous_AF:1,Servo_AF:0 Drive:0
1980Jan01 00:00:01 Interval:15000 RAW/DNG:false
1980Jan01 00:00:01 Tv:1/1000 max:1/2000 min:10 ecomp:0.0
1980Jan01 00:00:01 Av:4.0 minAv:2.8 maxAv:8.0
1980Jan01 00:00:01 ISOmin:100 ISO1:400 ISO2:800 M:0
1980Jan01 00:00:01 Focus:OFF Video:0 TimeOut:0
1980Jan01 00:00:01 USBmode:4 clock:1 Tmo:0 LED:-1 width:20
1980Jan01 00:00:01 AvM:2 int:15 Shts:0 Dly:0 B/L:0
1980Jan01 00:00:03 waiting on USB signal
1980Jan01 00:00:04 Menu key exit request
1980Jan01 00:00:04 Logger : log file updated.
1980Jan01 00:00:01 KAP 4.0 started - press MENU to exit
1980Jan01 00:00:01 CHDK 1.6.0-6019 ixus240_elph320hs 102a Oct 7 2021
1980Jan01 00:00:01 Mode:PLAY,Continuous_AF:1,Servo_AF:0 Drive:0
1980Jan01 00:00:01 Interval:15000 RAW/DNG:false
1980Jan01 00:00:01 Tv:1/1000 max:1/2000 min:10 ecomp:0.0
1980Jan01 00:00:01 Av:4.0 minAv:2.8 maxAv:8.0
1980Jan01 00:00:01 ISOmin:100 ISO1:400 ISO2:800 M:0
1980Jan01 00:00:01 Focus:OFF Video:0 TimeOut:0
1980Jan01 00:00:01 USBmode:4 clock:1 Tmo:0 LED:-1 width:20
1980Jan01 00:00:01 AvM:2 int:15 Shts:0 Dly:0 B/L:0
1980Jan01 00:00:03 waiting on USB signal
1980Jan01 00:00:10 * usb pulse = idle pulse (96 mSec)
1980Jan01 00:00:40 Menu key exit request
1980Jan01 00:00:40 Logger : log file updated.
1980Jan01 00:00:45 KAP 4.0 started - press MENU to exit
1980Jan01 00:00:45 CHDK 1.6.0-6019 ixus240_elph320hs 102a Oct 7 2021
1980Jan01 00:00:45 Mode:PLAY,Continuous_AF:1,Servo_AF:0 Drive:0
1980Jan01 00:00:45 Interval:15000 RAW/DNG:false
1980Jan01 00:00:45 Tv:1/1000 max:1/2000 min:10 ecomp:0.0
1980Jan01 00:00:45 Av:4.0 minAv:2.8 maxAv:8.0
1980Jan01 00:00:45 ISOmin:100 ISO1:400 ISO2:800 M:0
1980Jan01 00:00:45 Focus:OFF Video:0 TimeOut:0
1980Jan01 00:00:45 USBmode:4 clock:1 Tmo:0 LED:-1 width:20
1980Jan01 00:00:45 AvM:2 int:15 Shts:0 Dly:0 B/L:0
1980Jan01 00:00:47 waiting on USB signal
1980Jan01 00:00:58 Menu key exit request
1980Jan01 00:00:58 Logger : log file updated.
1980Jan01 00:00:01 KAP 4.0 started - press MENU to exit
1980Jan01 00:00:01 CHDK 1.6.0-6019 ixus240_elph320hs 102a Oct 7 2021
1980Jan01 00:00:01 Mode:PLAY,Continuous_AF:1,Servo_AF:0 Drive:0
1980Jan01 00:00:01 Interval:15000 RAW/DNG:false
1980Jan01 00:00:01 Tv:1/1000 max:1/2000 min:10 ecomp:0.0
1980Jan01 00:00:01 Av:4.0 minAv:2.8 maxAv:8.0
1980Jan01 00:00:01 ISOmin:100 ISO1:400 ISO2:800 M:0
1980Jan01 00:00:01 Focus:OFF Video:0 TimeOut:0
1980Jan01 00:00:01 USBmode:4 clock:1 Tmo:0 LED:-1 width:20
1980Jan01 00:00:01 AvM:2 int:15 Shts:0 Dly:0 B/L:0
1980Jan01 00:00:03 waiting on USB signal
1980Jan01 00:00:12 * usb pulse = idle pulse (97 mSec)
1980Jan01 00:00:51 Menu key exit request
1980Jan01 00:00:51 Logger : log file updated.
1980Jan01 00:00:01 KAP 4.0 started - press MENU to exit
1980Jan01 00:00:01 CHDK 1.6.0-6019 ixus240_elph320hs 102a Oct 7 2021
1980Jan01 00:00:01 Mode:PLAY,Continuous_AF:1,Servo_AF:0 Drive:0
1980Jan01 00:00:01 Interval:15000 RAW/DNG:false
1980Jan01 00:00:01 Tv:1/1000 max:1/2000 min:10 ecomp:0.0
1980Jan01 00:00:01 Av:4.0 minAv:2.8 maxAv:8.0
1980Jan01 00:00:01 ISOmin:100 ISO1:400 ISO2:800 M:0
1980Jan01 00:00:01 Focus:OFF Video:0 TimeOut:0
1980Jan01 00:00:01 USBmode:4 clock:1 Tmo:0 LED:-1 width:20
1980Jan01 00:00:01 AvM:2 int:15 Shts:0 Dly:0 B/L:0
1980Jan01 00:00:03 waiting on USB signal
1980Jan01 00:00:07 Menu key exit request
1980Jan01 00:00:07 Logger : log file updated.
1980Jan01 00:00:01 KAP 4.0 started - press MENU to exit
1980Jan01 00:00:01 CHDK 1.6.0-6019 ixus240_elph320hs 102a Oct 7 2021
1980Jan01 00:00:01 Mode:PLAY,Continuous_AF:1,Servo_AF:2 Drive:3
1980Jan01 00:00:01 Interval:15000 RAW/DNG:false
1980Jan01 00:00:01 Tv:1/1000 max:1/2000 min:10 ecomp:0.0
1980Jan01 00:00:01 Av:4.0 minAv:2.8 maxAv:8.0
1980Jan01 00:00:01 ISOmin:100 ISO1:400 ISO2:800 M:0
1980Jan01 00:00:01 Focus:OFF Video:0 TimeOut:0
1980Jan01 00:00:01 USBmode:4 clock:1 Tmo:0 LED:-1 width:20
1980Jan01 00:00:01 AvM:2 int:15 Shts:0 Dly:0 B/L:0
1980Jan01 00:00:03 waiting on USB signal
1980Jan01 00:00:07 Menu key exit request
1980Jan01 00:00:07 Logger : log file updated.