Server Crashing

[brandogw]

xrNaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN, !
File "/home/pi/evolver/evolver/evolver_server.py", line 417, in broadcast
data = run_commands()
File "/home/pi/evolver/evolver/evolver_server.py", line 279, in run_commands
data = ping_arduino(config)
File "/home/pi/evolver/evolver/evolver_server.py", line 379, in ping_arduino
config_to_arduino(key, value, PARAM[key][0], ENDING_SEND, PARAM[key][2])
File "/home/pi/evolver/evolver/evolver_server.py", line 350, in config_to_arduino
SERIAL.write(bytes(output, 'UTF-8'))
File "/usr/local/lib/python3.6/site-packages/pyserial-3.4-py3.6.egg/serial/serialposix.py", line 537, in write
TypeError: an integer is required (got type NoneType)

[zheins]

Is this still an issue?