Download all files from here:
https://github.com/m5stack/TimerCam-arduino/tree/master/src
(zip link: https://github.com/m5stack/TimerCam-arduino/archive/refs/heads/master.zip)
And replace all files in your TimerCam Lib src folder to downloaded:
@jmakiv
/Users/************/Documents/Arduino/libraries/TimerCam-arduino-master/src/
@redbox @paloces
C:\Users********\Arduino\libraries\Timer-CAM\src\