OLEDB Error "IErrorInfo.GetDescription failed with E_FAIL(0x80004005)."

I was recently working on a software system that uses either msaccess or mysql for its backend. Everything worked well while i was using mysql for the backend but suddenly out of nowhere this error "IErrorInfo.GetDescription failed with E_FAIL(0x80004005)" pops-up out of nowhere, i have traced and re-traced my code and it turned out that the culprit was a query that used a mysql built in function for strings. After getting rid of the mysql function everything ran smoothly. I'm posting this in the hopes that it may help someone who encounters similar error...