Six real Laravel errors produced log entries of 4,627 to 9,949 tokens, while a trimmed trace of the throw site and five app frames needed 61 to 113.
Exception messages embed bound query values, so a query for an email address puts that address in the trace you send to the model.
Two of the six easy fixes are wrong: a null-safe operator hides missing data and a $fillable entry opens a mass assignment hole.