What to do to remove errors?

Question

Python

Here is error #1
Unresolved reference 'add_to_subs'
Here is code
await bot.send_message(writer, CHANNEL_WAS_DEL_FROM_CHANNEL(add_to_subs[1], LINK_TO_INTRODUCTION_AND_RULES))

Error 2
Unresolved reference 'username'
Error code
await c.message.edit_text(YOU_ARE_LATE_FOR_SUBS(username.username) )

Answer 1

You have:
1) Unresolved reference 'add_to_subs'
2) Unresolved reference 'username'
No problem. Contact.