Example sTune QuickPID Example dont work

[dazkit]

Hello,

i use the example Code https://github.com/Dlloydev/sTune/blob/main/examples/MAX6675_PTC_SSR/sTune_QuickPID/sTune_QuickPID.ino without changing anything. I got the Arduino Mega 2560, PTC heater, Max6675 Thermo Couple and a SSR.
This is my Output.

Setpoint:80.00, Input:25.50, Output:25.00,
Setpoint:80.00, Input:26.25, Output:25.00,
Setpoint:80.00, Input:27.50, Output:25.00,
Setpoint:80.00, Input:28.50, Output:25.00,
Setpoint:80.00, Input:30.00, Output:25.00,
Setpoint:80.00, Input:31.75, Output:25.00,
Setpoint:80.00, Input:34.25, Output:25.00,
Setpoint:80.00, Input:36.50, Output:25.00,
Setpoint:80.00, Input:38.50, Output:25.00,
Setpoint:80.00, Input:41.00, Output:25.00,
Setpoint:80.00, Input:44.25, Output:25.00,
Setpoint:80.00, Input:47.50, Output:25.00,
Setpoint:80.00, Input:50.25, Output:25.00,
Setpoint:80.00, Input:53.50, Output:25.00,
Setpoint:80.00, Input:57.00, Output:25.00,
Setpoint:80.00, Input:60.50, Output:25.00,
Setpoint:80.00, Input:64.25, Output:25.00,
Setpoint:80.00, Input:67.50, Output:25.00,
Setpoint:80.00, Input:71.75, Output:25.00,
Setpoint:80.00, Input:75.75, Output:25.00,
Setpoint:80.00, Input:79.75, Output:25.00,
Setpoint:80.00, Input:84.00, Output:25.00,
Setpoint:80.00, Input:88.00, Output:25.00,
Setpoint:80.00, Input:93.50, Output:25.00,
Setpoint:80.00, Input:98.00, Output:25.00,
Setpoint:80.00, Input:103.25, Output:25.00,
Setpoint:80.00, Input:108.50, Output:25.00,
Setpoint:80.00, Input:113.75, Output:25.00,
Setpoint:80.00, Input:119.25, Output:25.00,
Setpoint:80.00, Input:125.00, Output:25.00,
Setpoint:80.00, Input:131.00, Output:25.00,
Setpoint:80.00, Input:136.75, Output:25.00,
Setpoint:80.00, Input:143.25, Output:25.00,
Setpoint:80.00, Input:149.50, Output:25.00,
ABORT: pvInst > eStop

What did i wrong?