FAQ Schema delete ?

Hello
I use the free version of RankMath.
I have a problem on an article where I manually inserted an LD/JSON code for a FAQType.
It seems that RankMath doubles the declaration of the FAQType schema and was reported to me by the Google Search Console.
The article was in an Article type schema. I deleted it but it did not change anything.
It is a strategic content for me. So I have to find a solution quickly.
The only solution I see is to uninstall RankMath and return to Yoast.
The article can be seen here: https://www.easy-it.fr/etre-premier-sur-google/
Please tell me quickly if it’s a bug or not.