/home/bambaazo/repro.bambaazon.com/storage/cache/ff/ffc08367726e5e8f748eecdec4ed3d8d423fa9a32751322591760a8e97a96095.php on line 466 Warning: A non-numeric value encountered in code example
Example: non-numeric value encountered php
Not exactly the issue you had but the same error for people searching.
This happened to me when I spent too much time on JavaScript.
Coming back to PHP I concatenated two strings with "+" instead of "." and got that error.