Try deleting the circle at the beginning of the line.
I've already done that, erased the circle in front of the bracket.
But nevertheless it runs only up to function 6!
Just found out, that I get the following error message working with Arduino 1.8.9 when I load the code into Arduino !!
Error message : "MFRC522_i2C.cpp" contains unknown characters. If the code was created with an older version of Arduino, you might want to use Tool -> Correct Coding & Reload etc. etc. to correct the code.
But even afterwards the program runs only up to function 6!