Cannot get entity by phone number as a bot (try using integer IDs, not strings)

[alisaqi]

Does anyone know how I can solve this error ?

[dvshrma]

Does anyone know how I can solve this error ?

Brother i'm a total noob in python. but i want this bot for my girl . can you help go through the process of making it. i'm trying from last 3 4 hours searching possibly everything but due to lack of knowledge in coding im not able to make it work. If you help me i'll highly appreciate it. Thanks brother

i downloaded python and then installed telethon also but after that i'm totally clueless of what to do also i made bot from botfather but how to make that bot work i don't know