Non-allowable allele encodings in DH marker set

Hi, welcome!

We don't really have enough info to help you out. Could you ask this with a minimal REPRoducible EXample (reprex)? A reprex makes it much easier for others to understand your issue and figure out how to help.

The error message also notes

Non-allowable allele encodings in DH marker set”

Which seems to be hinting at a likely source of the problem.