@qb-adminmenu/client/client.lua:891: attempt to call a nil value (field 'firsttoupper')

I am new to this when i open my admin menu this is what happens. I am new to this scripting stuff. If anyone knows what to do please feel free to hit me up.

Im getting the same issue. Any luck?

none i had to redo my whole server an check everything individually

Make sure in qb-core/shared/main.lua exists the function FirstToUpper.

function QBShared.FirstToUpper(value)
    if not value then return nil end
    return (value:gsub("^%l", string.upper))
end