Hi Imen,
osmo-uecups is a very niche tool, which sysmocom developed internally as a tool for testing. It is doing what we needed it to do, and it gets used continuously for what we wrote it.
sysmocom does not earn any money with that tool, nor the test suite, yet both are developed as open source and available to the wider community "as-is".
I doubt it is used widely (or at all) by anyone else so far, and it's sadly highly unlikely that you would find someone here who would be willing to investigate any issues you encounter in their spare time, sorry.
In case this is a commercial requirement, feel free to reach out to sales@sysmocom.de to acquire paid support services.
Having said that, we're of course happy to review and merge any patches you might want to submit to help us improve the tool.
Kind regards, Harald