Arizona State's bowl ban comes amid an NCAA investigation into alleged violations that occurred under former coach Herm Edwards in 2020.

Due to alleged recruiting violations under Herm Edwards during the 2020 dead period.

From the article:

“Arizona State University has informed the NCAA and Pac-12 conference that it will self-impose a one-year postseason ban on its football program for the upcoming season,” Arizona State athletic director Ray Anderson said in a statement. “In light of the ongoing investigation and our membership obligation to maintain the confidentiality of the matter, we will not be commenting further at this time.”