I have triple checked the industry code and I am using the exact same one as last year and its still giving me the warning and not allowing me to netfile my return

Many codes have been changed for 2022. For example, Direct Sellers and Retailers must now choose codes based on what they are selling.

Please visit the NAICS 2022 website here to check if your code still exists and what a new one might be: https://www23.statcan.gc.ca/imdb/p3VD.pl?Function=getVD&TVD=1369825