Server information command discord.py

I am having some issues with my server-information command in discord.py. For the premium_tier (Boost) if calls, I am getting Undefined variable 'premium_tier'. I believe that I am getting an error for the thumbnail, though I am not seeing it.

Code:

@bot.command()  async def server(ctx, *, server: discord.Guild = None):      embedVar = discord.Embed(color=0xfaa61a)      date_format = "%a, %d %b %Y %I:%M %p"      embedVar.add_field(name="Created at:", value=server.created_at.strftime(date_format))      embedVar.add_field(name="Humans", value=sum(not member.bot for member in ctx.guild.members))      embedVar.add_field(name="Bots", value=sum(member.bot for member in ctx.guild.members))        if premium_tier == "0":          embedVar.add_field(name="Boost Level", value='None')      if premium_tier == "1":          embedVar.add_field(name="Boost Level", value='1')      if premium_tier == "2":          embedVar.add_field(name="Boost Level", value='2')      if premium_tier == "3":          embedVar.add_field(name="Boost Level", value='3')            embedVar.add_field(name="Owner", value=server.owner)      embedVar.set_thumbnail(url=server.icon_url)      return await ctx.send(embed=embedVar)  

https://stackoverflow.com/questions/67377568/server-information-command-discord-py May 04, 2021 at 09:08AM