[Kane]

You need to convert inputtext into an integer.

https://sampwiki.blast.hk/wiki/Strval

Example:

PHP код:

new string[4] = "250";
new iValue = strval(string); // iValue is now '250
//In your case:
new ourValue = strval(inputtext); 


I assume using the players score as the player ID was a mistake. You just need to add them together.

PHP код:

SetPlayerScore(i, GetPlayerScore(i) + ourValue);