app crashes on Apple Silicon

[mibosshard]

app starts normally but when clicking "Save" in "Reposado Configuration" at first launch it crashes:

Process: SUS Inspector [807]
Path: /Applications/SUS Inspector.app/Contents/MacOS/SUS Inspector
Identifier: com.hjuutilainen.SUS-Inspector
Version: 2.0b1 (2.0b1)
Code Type: ARM-64 (Native)
Parent Process: ??? [1]
Responsible: SUS Inspector [807]
User ID: 501

Date/Time: 2020-11-19 09:01:40.538 +0100
OS Version: macOS 11.0.1 (20B29)
Report Version: 12
Anonymous UUID: E47FF8E7-F6C8-48C8-A9DE-978A9751DC68

Time Awake Since Boot: 2200 seconds

System Integrity Protection: enabled

Crashed Thread: 4 Dispatch queue: com.apple.NSFileHandle.fd_monitoring

Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY

Application Specific Information:
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFString replaceOccurrencesOfString:withString:options:range:]: nil argument'
terminating with uncaught exception of type NSException
abort() called