# Error Codes ## Introduction In-game in client(F8)-console or server-console you'll notice some error codes. These are prints to quickly solve your issues. ## Client ### 7542 This error should give you the shopId(`number`) and a class(`string`). You have a shop in your database with a class name that's not defined in your Config.Markers. The only way for this error to occur is if you rename the index/key strings of the markers. Please revert the changes. You are not allowed to edit the class name(string). It's used as an identifier throughout the script and it will not function. If you have the knowledge, then manually edit the markers column for the given row of the shopId in the database table. Else we recommend you to fully delete that shop (you can do it in-game or through database) and recreate the shop & markers. ## Server --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.t1ger.net/resources/t1ger-tuning-system/troubleshoot/error-codes.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.