Error 'Connection reset by peer'

Code was running smoothly since morning and stopped, I checked logs and found following:

1674450633219 :: getCall ::  :: 1674450633219 ::  

('Connection aborted.', ConnectionResetError(104, 'Connection reset by peer'))

1674450633219 :: positions ::  :: 1674450633219 :: response

ERROR  : 'dict' object has no attribute 'json'

What does connection reset by peer mean?

Vikram Sri Anirban Kanrar