[Konstantinos]

Okay, then check if the file opens correctly and then write to it.

An example:

pawn Код:

new 
    File: log_file = fopen( "logs/radio.log", io_append )
;
if( log_file ) // it opened correctly, now you can write to it. Othewise you try to write to a closed file which cause problems
{
    fwrite( log_file, "some logs here" );
    fclose( log_file );
}