First post your Plugin environment, I cannot assist you without more info. Make sure you are using latest versions of SLP and the add-ons. See versions
If you have older Legacy add-ons , such as Enhanced results or Enhanced Search. check to see if they are compatible with the version of SLP you are using. They will not work with SLP version 4.7.6 or above.
…again please follow the posting guidlines and provide information so I can better assist you.