To edit,repair and configure a max of 10 php files,Possibly less.

Hi I Am looking for various files to be repaired, edited,? configured and secured within my game. These files include Crew issues ( example when leader is dead successor is not taking his place) Auction issues ( propertys owned by a player comes up wioth an error when the player trys to selll his property on the auction house = fix? and find any possible bugs/exploits) Street Race issues.(some issues when apponant is enerting the race) Lottery issues ( is not paying out to the winner) Garage issues(to add an option to select cars to be sold and then sell selected cars ) These are some examples of some of the job that needs to be fixed. These are all? php file within my rpg? game. each file has a sql table aswell. Advice is available to help give knowledge of how these files work within the game. Please note these issues are only coding bugs/errors and need fixing, there is no full files to be made. Hence no really large amount of coding is needed. These files will be described as arranged via messanger.