can't install InDesign - get error _NSCFConstantString objectAtIndex:

[chrsmoeller]

I am trying to install InDesign 2022 on a old iMac - Late 2012 with a new installed Catalina 10.15.7.

I can run the script and create the install packed but when I try to install it I get the error below

Install packed - "Install IDSN_17.4.2-en_GB-macuniversal"

Error: Error: 2023-09-26 10:22:53.286 applet[1431:35170] -[__NSCFConstantString objectAtIndex:]: unrecognized selector sent to instance 0x7fff8e0580d0
2023-09-26 10:22:53.289 applet[1431:35170] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFConstantString objectAtIndex:]: unrecognized selector sent to instance 0x7fff8e0580d0'
*** First throw call stack:
(
0 CoreFoundation 0x00007fff36896a17 __exceptionPreprocess + 250
1 libobjc.A.dylib 0x00007fff6f3b4a9e objc_exception_throw + 48
2 CoreFoundation 0x00007fff36915e36 -[NSObject(NSObject) __retain_OA] + 0
3 CoreFoundation 0x00007fff367fb190 forwarding + 1427
4 CoreFoundation 0x00007fff367fab68 _CF_forwarding_prep_0 + 120
5 AE 0x00007fff37c03cb1 aeHintApp + 3104
6 AE 0x00007fff37bc1c36 AESendMessage + 2761
7 AppleScript 0x00007fff4a53777c -[OSAAppletDelegate terminate:] + 101
8 AppleScript 0x00007fff4a53811e __HandleScriptEvent_block_invoke + 270
9 libdispatch.dylib 0x00007fff704fa6c4 _dispatch_call_block_and_release + 12
10 libdispatch.dylib 0x00007fff704fb658 _dispatch_client_callout + 8
11 libdispatch.dylib 0x00007fff70506cab _dispatch_main_queue_callback_4CF + 936
12 CoreFoundation 0x00007fff36859df3 CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE + 9
13 CoreFoundation 0x00007fff36819a8a __CFRunLoopRun + 2042
14 CoreFoundation 0x00007fff36818c33 CFRunLoopRunSpecific + 466
15 HIToolbox 0x00007fff35434aad RunCurrentEventLoopInMode + 292
16 HIToolbox 0x00007fff354347c5 ReceiveNextEventCommon + 584
17 HIToolbox 0x00007fff35434569 _BlockUntilNextEventMatchingListInModeWithFilter + 64
18 AppKit 0x00007fff33a7d3c9 _DPSNextEvent + 883
19 AppKit 0x00007fff33a7bc10 -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 1352