Have a bug in cards

On all my cards there is extra letters right after the english word. It is not on the spanish word. When I got to edit it out, it’s not there. It reads the m xp0 it comes right on top of the english word. For example: the word “above” reads “abovethe m xp0” Can this be fixed?

https://faqs.ankiweb.net/extra-characters-appearing-on-cards.html

Thank you so much. I only had to change the template on one card to delete the extra letters and it fixed the problem for all my cards, over 3,500.