error resolve of android application remotely

We are integrating the "Cashfree" Indian payment gateway, we are getting the error mentioned below, want to resolve it remotely.

CrashLogs : {"source":"app-sdk","ts":"2022-01-12 15:33:18","app_id":"1224222209ca22e544e5abdd50224221","package":"in.freshhaat.shopping","android_id":"448c4a514d4c7dc3","platform":"Linux","os_version":"30","device_model":"sdk_gphone_x86","device_name":"google","sdk_version":"1.7.14","network_type":"Mobile","stack":"com.cashfree.pg.ui.web_checkout.CFPaymentActivity.onCreate(SourceFile:1)","cause":"java.lang.NullPointerException: Attempt to invoke virtual method 'void androidx.appcompat.app.ActionBar.setDisplayHomeAsUpEnabled(boolean)' on a null object reference"}