diff --git a/modules/api_client.py b/modules/api_client.py
index e8fba39..f5ac191 100644
--- a/modules/api_client.py
+++ b/modules/api_client.py
@@ -7,11 +7,13 @@ except ModuleNotFoundError:
 
 import asyncio
 from base64 import b64decode, b64encode
+from traceback import print_exc
+import aiofiles
 from ujson import dumps
 from os import makedirs, path, sep
 from random import choice
 from typing import Tuple, Union
-from aiohttp import ClientSession
+from aiohttp import ClientSession, FormData
 
 from classes.exceptions import SubmissionUploadError
 
@@ -25,8 +27,8 @@ http_session = ClientSession(json_serialize=dumps, )
 async def authorize() -> str:
     makedirs(configGet("cache", "locations"), exist_ok=True)
     if path.exists(configGet("cache", "locations")+sep+"api_access") is True:
-        with open(configGet("cache", "locations")+sep+"api_access", "rb") as file:
-            token = b64decode(file.read()).decode("utf-8")
+        async with aiofiles.open(configGet("cache", "locations")+sep+"api_access", "rb") as file:
+            token = b64decode(await file.read()).decode("utf-8")
         if (await http_session.get(configGet("address", "posting", "api")+"/users/me/", headers={"Authorization": f"Bearer {token}"})).status == 200:
             return token
     payload = {
@@ -36,11 +38,11 @@ async def authorize() -> str:
         "password": configGet("password", "posting", "api")
     }
     response = await http_session.post(configGet("address", "posting", "api")+"/token", data=payload)
-    if response.status != 200:
+    if not response.ok:
         logWrite(f'Incorrect API credentials! Could not login into "{configGet("address", "posting", "api")}" using login "{configGet("username", "posting", "api")}": HTTP {response.status}')
         raise ValueError
-    with open(configGet("cache", "locations")+sep+"api_access", "wb") as file:
-        file.write(b64encode((await response.json())["access_token"].encode("utf-8")))
+    async with aiofiles.open(configGet("cache", "locations")+sep+"api_access", "wb") as file:
+        await file.write(b64encode((await response.json())["access_token"].encode("utf-8")))
     return (await response.json())["access_token"]
 
 async def random_pic(token: Union[str, None] = None) -> Tuple[str, str]:
@@ -66,8 +68,17 @@ async def upload_pic(filepath: str, allow_duplicates: bool = False, token: Union
     token = await authorize() if token is None else token
     try:
         pic_name = path.basename(filepath)
-        files = {'file': (pic_name, open(filepath, 'rb'), 'image/jpeg')}
-        response = await http_session.post(f'{configGet("address", "posting", "api")}/albums/{configGet("album", "posting", "api")}/photos', params={"caption": "queue", "compress": False, "ignore_duplicates": allow_duplicates}, headers={"Authorization": f"Bearer {token}"}, files=files)
+        logWrite(f"Uploading {pic_name} to the API...", debug=True)
+        async with aiofiles.open(filepath, "rb") as f:
+            file_bytes = await f.read()
+        formdata = FormData()
+        formdata.add_field('file', file_bytes, filename=pic_name, content_type='image/jpeg')
+        response = await http_session.post(
+            f'{configGet("address", "posting", "api")}/albums/{configGet("album", "posting", "api")}/photos',
+            params={"caption": "queue", "compress": "false", "ignore_duplicates": str(allow_duplicates).lower()},
+            headers={"Authorization": f"Bearer {token}"},
+            data=formdata
+        )
         if response.status != 200 and response.status != 409:
             logWrite(f"Could not upload '{filepath}' to API: HTTP {response.status} with message '{response.content}'")
             raise SubmissionUploadError(str(filepath), response.status, response.content)
@@ -79,7 +90,8 @@ async def upload_pic(filepath: str, allow_duplicates: bool = False, token: Union
                 else:
                     duplicates.append(f'`{duplicate["id"]}`:\n{configGet("address_external", "posting", "api")}/token/photo/{(await response.json())["access_token"]}?id={index}')
         return True, duplicates
-    except:
+    except Exception as exp:
+        print_exc()
         return False, []
     
 async def find_pic(name: str, caption: Union[str, None] = None, token: Union[str, None] = None) -> Union[dict, None]:
diff --git a/modules/sender.py b/modules/sender.py
index bd6b425..16136c4 100644
--- a/modules/sender.py
+++ b/modules/sender.py
@@ -1,9 +1,10 @@
 from datetime import datetime
 from os import makedirs, path
-from shutil import copyfileobj, rmtree
+from shutil import rmtree
 from traceback import format_exc
 from uuid import uuid4
 from PIL import Image
+import aiofiles
 
 from classes.poster_client import PosterClient
 
@@ -35,7 +36,7 @@ async def send_content(app: PosterClient) -> None:
                 await app.send_message(app.owner, locale("api_queue_error", "message", locale=configGet("locale")))
             return
         
-        response = await http_session.get(f'{configGet("address", "posting", "api")}/photos/{pic[0]}', headers={"Authorization": f"Bearer {token}"}, stream=True)
+        response = await http_session.get(f'{configGet("address", "posting", "api")}/photos/{pic[0]}', headers={"Authorization": f"Bearer {token}"})
 
         if response.status != 200:
             logWrite(locale("post_invalid_pic", "console", locale=configGet("locale")).format(response.status, str(response.json())))
@@ -48,8 +49,8 @@ async def send_content(app: PosterClient) -> None:
 
         tmp_path = path.join(tmp_dir, pic[1])
 
-        with open(path.join(configGet("tmp", "locations"), tmp_path), 'wb') as out_file:
-            out_file.write(await response.read())
+        async with aiofiles.open(path.join(configGet("tmp", "locations"), tmp_path), 'wb') as out_file:
+            await out_file.write(await response.read())
 
         logWrite(f'Candidate {pic[1]} ({pic[0]}) is {path.getsize(path.join(configGet("tmp", "locations"), tmp_path))} bytes big', debug=True)
 
diff --git a/requirements.txt b/requirements.txt
index 3bab7d8..27f8e1a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,7 @@
 apscheduler~=3.10.0
 pyrogram~=2.0.100
 aiohttp~=3.8.4
+aiofiles~=23.1.0
 psutil~=5.9.4
 pymongo~=4.3.3
 pillow~=9.4.0