What to do if it gives an error with formatting "f"?

Question

Python

@bot.event
async def on_ready():
    for guild in bot.guilds:
        for member in guild.members:
            values = {
                "_id": member.id,
                "guild_id": guild.id,
                "warns": 0,
                "reasons": []
            }
            server_values = {
                "_id": guild.id,
                "case": 0
            }

            if collusers.count_documents({"_id": member.id, "guild_id": guild.id}) == 0:
                collusers.insert_one(values)
            if collusers.count_documents({"_id": guild_id}) == 0:
                collservers.insert_one(server_values)

@bot.event
async def on_member_join(member):
    values = {
        "_id": member.id,
        "guild_id": guild.id,
        "warns": 0,
        "reasons": []
    }
    if collusers.count_documents({"_id": member.id, "guild_id": guild.id}) == 0:
        collusers.insert_one(values)

@bot.event
async def on_guild_join(guild):
    server_values = {
        "_id": guild.id,
        "case": 0
    }
    if collusers.count_documents({"_id": guild_id}) == 0:
        collservers.insert_one(server_values)

@commands.command(name="warn")
async def give_warn(self, ctx, member: discord.Member, *, reason="Причина"):
    if self.collusers.find_one({"_id": member.id, "guild_id": ctx.guild.id})["warns"] >= 3:
        self.collusers.update_one(
            {
                "_id": member.id,
                "guild_id": ctx.guild.id
            },
            {
                "$set": {
                "warns": 0,
                "reasons": []
                }
            }

            )
        role = discord.utils.get(ctx.guild.roles, id=963459304617312296)
        await member.add_roles(role)
    else:
        self.collservers.update_one(
            {
                "_id": ctx.guild.id
            },
            {
                "$inc": {
                    "case": 1
                }
            }
        )
        self.collusers.update_one(
            {
                "_id": member.id,
                "guild_id": ctx.guild.id
            },
            {
                "$inc": {
                    "warns": 1
                },
                "$push": {
                    "reasons": {
                        "author_id": ctx.author.id,
                        "case": self.collservers.find_one({"_id": ctx.guild.id})["case"],
                        "reason": reason
                    }
                }
            }
        )

        await ctx.send(f"{ctx.author} выдал предупреждение {member} | case: {self.collservers.find_one({"_id": ctx.guild.id})["case"]}")

Error: C:\Users\pasha\Desktop\bot>py bot.py
File "C:\Users\pasha\Desktop\bot\bot.py", line 573
await ctx.send(f"{ctx.author} issued warning {member} | case: {self.collservers.find_one({"_id": ctx.guild.id})["case"]}")
^
SyntaxError: f-string: unmatched '{'

Answer 1

Well, in your query to mongoDB (judging by the syntax), there are curly brackets. Here is the line and swears