diff --git a/src/APIHandler.py b/src/APIHandler.py
index 95cc862..534c376 100644
--- a/src/APIHandler.py
+++ b/src/APIHandler.py
@@ -65,12 +65,12 @@ class APIHandler:
                 case 404:
                     # Lapalissian:
                     raise ConnectionError(
-                        f"404: Not Found. This means there's no resource with this elabid (wrong elabid?) on your eLabFTW (wrong endpoint?)."
+                        "404: Not Found. This means there's no resource with this elabid (wrong elabid?) on your eLabFTW (wrong endpoint?)."
                     )
                 case 400:
                     # I genuinely have no idea:
                     raise ConnectionError(
-                        f"400: Bad Request. This means the API endpoint you tried to reach is invalid. Did you tamper with the source code? If not, contact the developer."
+                        "400: Bad Request. This means the API endpoint you tried to reach is invalid. Did you tamper with the source code? If not, contact the developer."
                     )
                 case _:
                     # For some fucking reason, this is the only error I actually get from the API...