why it says `Can't find FULLTEXT index matching the column list`, when i do have the index

the attachment shows my code. I'm trying to search a string array type column, but want to exclude docs that have a specific text, using the notEqual method. I've created a fullText type index with both of the columns included (the second attachment shows my index). but it still throws an error in the console saying Server Error. when I checked the container logs, I found Can't find FULLTEXT index matching the column list. don't know what's happening

TL;DR

User is experiencing an error message stating "Can't find FULLTEXT index matching the column list" despite having a full text index. They have two indexes: one full text index with 'betDigitArray' and one key index with 'betType'. They are requesting assistance to create a full text index only with 'betDigitArray'. User has provided code and attachments showing their index creation. They are trying to search a string array column and exclude documents with a specific text using the notEqual method. The error occurs and user is unsure of what is happening. Solution: It seems that the issue is caused by not having a full text index