Hi Isabel,
There was a problem of not recognizing chrX, but I have just pushed a fix to automatically convert chrX to chr23.
However, it seemed that some of your variants are in CRCh37, and some are not in GRCh38 or GRCh37 at all.
For example, I checked a few of your variants:
'11', '176614', 'c', 'g': this is in GRCh37
'4', '189999278', 'a', 'g': this does not exist in either
'13', '80902327', 'a', 'g': this does not exist in either
When you run your job on FUMA SNP2GENE selecting that your input is in GRCh38, before the job ran into the error with chrX, none of the variants are found in dbSNP version 157. Please make sure which genomic build your data is in before submitting.
Best,
Tanya