Error: listen EADDRINUSE: address already in use :::6784

i have a problem in my app , imay app used to run normally but this morning its startes showing me this err : Error: listen EADDRINUSE: address already in use :::6784 how can i solve it ! my project is a bot telegram with express server and mongoose as DB Service ID : c4fadcee-4660-4c08-a611-7925bce0a3f6