diff --git a/pagermaid/modules/account.py b/pagermaid/modules/account.py
index a7e5153..d8e192a 100644
--- a/pagermaid/modules/account.py
+++ b/pagermaid/modules/account.py
@@ -169,6 +169,8 @@ async def profile(context):
     await context.edit(lang('profile_process'))
     if context.reply_to_msg_id:
         reply_message = await context.get_reply_message()
+        if not reply_message:
+            return await context.edit(f"{lang('error_prefix')}{lang('arg_error')}")
         user = reply_message.from_id
         target_user = await context.client(GetFullUserRequest(user))
     else:
diff --git a/pagermaid/modules/captions.py b/pagermaid/modules/captions.py
index 06c0260..0de6298 100644
--- a/pagermaid/modules/captions.py
+++ b/pagermaid/modules/captions.py
@@ -190,11 +190,15 @@ async def highlight(context):
         await context.edit(lang('caption_error'))
         return
     await context.edit(lang('highlight_uploading'))
-    await context.client.send_file(
-        context.chat_id,
-        result,
-        reply_to=reply_id
-    )
+    try:
+        await context.client.send_file(
+            context.chat_id,
+            result,
+            reply_to=reply_id
+        )
+    except PhotoInvalidDimensionsError:
+        await context.edit(lang('caption_error'))
+        return
     await context.delete()
 
 
diff --git a/pagermaid/modules/message.py b/pagermaid/modules/message.py
index 29b887c..98ee57a 100644
--- a/pagermaid/modules/message.py
+++ b/pagermaid/modules/message.py
@@ -16,6 +16,14 @@ from pagermaid.listener import listener
 from pagermaid.utils import lang, alias_command
 
 
+def isfloat(value):
+    try:
+        float(value)
+        return True
+    except ValueError:
+        return False
+
+
 @listener(is_plugin=False, outgoing=True, command=alias_command("id"),
           description=lang('id_des'))
 async def userid(context):
@@ -213,6 +221,8 @@ async def feet2meter(context):
     if not len(context.parameter) == 1:
         await context.edit(lang('arg_error'))
         return
+    if not isfloat(context.parameter[0]):
+        return await context.edit(lang('re_arg_error'))
     feet = float(context.parameter[0])
     meter = feet * .3048
     await context.edit(f"{lang('m2f_get')} {str(feet)} {lang('m2f_feet')}{lang('m2f_convert_to')} {str(meter)} "