# Buggy code
async def format_cog_help(self, ctx: Context, obj: commands.Cog):
    coms = await self.get_cog_help_mapping(ctx, obj)
    if not (coms or self.CONFIRM_UNAVAILABLE_COMMAND_EXISTENCES):
        return

    description = obj.help
    tagline = (await ctx.bot.db.help.tagline()) or self.get_default_tagline(ctx)

    if await ctx.embed_requested():
        emb = {
            "embed": {"title": "", "description": ""},
            "footer": {"text": ""},
            "fields": [],
        }

        emb["footer"]["text"] = tagline
        if description:
            emb["embed"]["title"] = f"*{description[:2044]}*"

        if coms:
            command_text = "\n".join(
                f"**{name}** {command.short_doc}"
                for name, command in sorted(coms.items())
            )
            for i, page in enumerate(
                pagify(command_text, page_length=1000, shorten_by=0)
            ):
                if i == 0:
                    title = "**__Commands:__**"
                else:
                    title = "**__Commands:__** (continued)"
                field = EmbedField(title, page, False)
                emb["fields"].append(field)

        await self.make_and_send_embeds(ctx, emb)

    else:
        subtext = None
        subtext_header = None
        if coms:
            subtext_header = "Commands:"
            max_width = max(discord.utils._string_width(name) for name in coms.keys())

            def width_maker(cmds):
                doc_max_width = 80 - max_width
                for nm, com in sorted(cmds):
                    width_gap = discord.utils._string_width(nm) - len(nm)
                    doc = com.short_doc
                    if len(doc) > doc_max_width:
                        doc = doc[: doc_max_width - 3] + "..."
                    yield nm, doc, max_width - width_gap

            subtext = "\n".join(
                f"  {name:<{width}} {doc}"
                for name, doc, width in width_maker(coms.items())
            )

        to_page = "\n\n".join(filter(None, (description, subtext_header, subtext)))
        pages = [box(p) for p in pagify(to_page)]
        await self.send_pages(ctx, pages, embed=False)


# Traceback (discord.errors.Forbidden)
019-05-15 16:23:44] [ERROR] red: Exception in command 'help'
Traceback (most recent call last):
File "/usr/local/lib/python3.7/site-packages/discord/ext/commands/core.py", line 63, in wrapped
ret = await coro(*args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/redbot/core/commands/help.py", line 513, in red_help
await ctx.bot.send_help_for(ctx, thing_to_get_help_for)
File "/usr/local/lib/python3.7/site-packages/redbot/core/bot.py", line 132, in send_help_for
return await self._help_formatter.send_help(ctx, help_for)
File "/usr/local/lib/python3.7/site-packages/redbot/core/commands/help.py", line 95, in send_help
await self.format_bot_help(ctx)
File "/usr/local/lib/python3.7/site-packages/redbot/core/commands/help.py", line 394, in format_bot_help
await self.send_pages(ctx, pages, embed=False)
File "/usr/local/lib/python3.7/site-packages/redbot/core/commands/help.py", line 500, in send_pages
await destination.send(page)
File "/usr/local/lib/python3.7/site-packages/discord/abc.py", line 776, in send
data = await state.http.send_message(channel.id, content, tts=tts, embed=embed, nonce=nonce)
File "/usr/local/lib/python3.7/site-packages/discord/http.py", line 218, in request
raise Forbidden(r, data)
discord.errors.Forbidden: FORBIDDEN (status code: 403): Cannot send messages to this user

# Fixed code
async def format_cog_help(self, ctx: Context, obj: commands.Cog):
    coms = await self.get_cog_help_mapping(ctx, obj)
    if not (coms or await ctx.bot.db.help.verify_exists()):
        return

    description = obj.help
    tagline = (await ctx.bot.db.help.tagline()) or self.get_default_tagline(ctx)

    if await ctx.embed_requested():
        emb = {
            "embed": {"title": "", "description": ""},
            "footer": {"text": ""},
            "fields": [],
        }

        emb["footer"]["text"] = tagline
        if description:
            emb["embed"]["title"] = f"*{description[:2044]}*"

        if coms:

            def shorten_line(a_line: str) -> str:
                if len(a_line) < 70:  # embed max width needs to be lower
                    return a_line
                return a_line[:67] + "..."

            command_text = "\n".join(
                shorten_line(f"**{name}** {command.short_doc}")
                for name, command in sorted(coms.items())
            )
            for i, page in enumerate(
                pagify(command_text, page_length=1000, shorten_by=0)
            ):
                if i == 0:
                    title = "**__Commands:__**"
                else:
                    title = "**__Commands:__** (continued)"
                field = EmbedField(title, page, False)
                emb["fields"].append(field)

        await self.make_and_send_embeds(ctx, emb)

    else:
        subtext = None
        subtext_header = None
        if coms:
            subtext_header = "Commands:"
            max_width = max(discord.utils._string_width(name) for name in coms.keys())

            def width_maker(cmds):
                doc_max_width = 80 - max_width
                for nm, com in sorted(cmds):
                    width_gap = discord.utils._string_width(nm) - len(nm)
                    doc = com.short_doc
                    if len(doc) > doc_max_width:
                        doc = doc[: doc_max_width - 3] + "..."
                    yield nm, doc, max_width - width_gap

            subtext = "\n".join(
                f"  {name:<{width}} {doc}"
                for name, doc, width in width_maker(coms.items())
            )

        to_page = "\n\n".join(filter(None, (description, subtext_header, subtext)))
        pages = [box(p) for p in pagify(to_page)]
        await self.send_pages(ctx, pages, embed=False)