That type of clicking controller problem is usually caused by an old or worn out battery pack that drops too much Voltage under load.
To load test the battery pack test its Voltage with the power switch off, and then while watching the Voltage level turn the power switch on and twist the throttle. If the battery pack Voltage drops to 23 Volts or less then the battery pack will need to be replaced. A good battery pack will drop less than 1 Volt while under load. Controllers turn off power to the motor when they detect a battery pack Voltage of between 21.5 through 23 Volts.
If the battery pack passes the load test then please let us know and we will take it from there. Please let us know if you have any questions.
We do not have any specifications for the proper resistance value of electric scooter motors, The motor's resistance should vary widely depending on the position of its shaft so that could be a difficult value to determine with certainty. We usually test motors by wiring them directly to a battery or battery pack to see if they run.
The 24.52 Volt battery pack Voltage is very low as it should be between 27-28 Volts after being fully charged. Each battery should recharge to and maintain a 13.8 Volt charge. Although the battery pack did not drop lower than 23 Volts during the test I would still be suspect of it since it is not holding its charge. It could be possible that the controller has a higher low-Voltage cut off value than normal, so I would inquire with the seller of the controller to see if there is a specification sheet available for the controller which states what its low-Voltage cut off value is.
Although it is rare, some controllers use brake switches with normally closed switches, so you might want to try bridging the brake switch wires together on the controller and see if that helps.
Also, some scooters require to be moving before the motor will start, so I would try kicking the scooter off to over 3 mph and then see if the motor will start while the scooter is in motion.
Please let us know how it goes.