You can’t publish this version because your Verse persistable data is not backward compatible with your current published version. Please create a new version from UEFN that is compatible with your current published version.
VerseBuild: Error: Unknown source location.: Script error 3643: Missing definition in source package that corresponds to published definition (/smicho15@fortnite.com/MASK_FIGHT__ALL_WEAPONS:)player_stats_table.
errors.com.epicgames.cookplugin.versebuildscripterror
Hey there @pocayo_mynor! Welcome to the community! So the specific error Script error 3643: Missing definition indicates that a data structure, in this case, player_stats_table, which was present in your previously published island, has been removed or significantly altered in the new version you are trying to cook. This is basically a backwards compatibility check for save data. This stops users from having broken persistent data and causing bugs due to version updates.
This documentation explains a bit about modifying or resetting your persistent variables in a safer way.