Trying i2c and pwm

Please enter a value from 0 to 90: 45
Traceback (most recent call last):
  File "/home/debian/ServoCape/./PCA_USE_ONE.py", line 15, in <module>
    servo()
  File "/home/debian/ServoCape/./PCA_USE_ONE.py", line 11, in servo
    if pwm_controller >= 1 and pwm_controller >= 90:
TypeError: '>=' not supported between instances of 'PCA9685' and 'int'