More information is needed.
- Versions (TA, OS, etc.)- Architecture of TA (x86, x64, etc.)- Architecture of OS.- Function that is "failing"- Exact return code- Exact parameters used.
https://wyday.com/limelm/help/faq/#useful-reports
My guess -- you're using an old version of TA and/or your programmers haven't followed our example code. Paste a snippet of the code you're using around the failure.