Autoregression model failed Breusch-Godfrey test and Shapiro-Wilk test

#1
I built an Autoregression model. It passed the ADF test, Durbin-Watson test, and Ramsey RESET Test. However, it failed the Breusch-Godfrey test and Shapiro-Wilk test. Can this model still be used? Are there any cautions when using it? Thanks!