diff --git a/src/api/mod_portal_handler.go b/src/api/mod_portal_handler.go
index e723c0d..2f6e3be 100644
--- a/src/api/mod_portal_handler.go
+++ b/src/api/mod_portal_handler.go
@@ -20,15 +20,12 @@ func ModPortalListModsHandler(w http.ResponseWriter, r *http.Request) {
 
 	var statusCode int
 	resp, err, statusCode = factorio.ModPortalList()
-
+	w.WriteHeader(statusCode)
 	if err != nil {
-		resp = fmt.Sprintf("Error in listing mods from mod portal: %s", err)
+		resp = fmt.Sprintf("Error in listing mods from mod portal: %s\nresponse: %+v", err, resp)
 		log.Println(resp)
-		w.WriteHeader(http.StatusInternalServerError)
 		return
 	}
-
-	w.WriteHeader(statusCode)
 }
 
 // ModPortalModInfoHandler returns JSON response with the mod details
@@ -114,19 +111,13 @@ func ModPortalLoginHandler(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	loginStatus, err, statusCode := factorio.FactorioLogin(data.Username, data.Password)
+	err, statusCode := factorio.FactorioLogin(data.Username, data.Password)
+	w.WriteHeader(statusCode)
 	if err != nil {
 		resp = fmt.Sprintf("Error trying to login into Factorio: %s", err)
 		log.Println(resp)
-		w.WriteHeader(http.StatusInternalServerError)
 		return
 	}
-
-	if loginStatus == "" {
-		resp = true
-	}
-
-	w.WriteHeader(statusCode)
 }
 
 func ModPortalLoginStatusHandler(w http.ResponseWriter, r *http.Request) {
diff --git a/src/api/mods_handler_test.go b/src/api/mods_handler_test.go
index faeef7c..72566a8 100644
--- a/src/api/mods_handler_test.go
+++ b/src/api/mods_handler_test.go
@@ -46,7 +46,7 @@ func TestMain(m *testing.M) {
 	}
 	if !load {
 		// no credentials found, login...
-		_, err, _ = factorio.FactorioLogin(os.Getenv("factorio_username"), os.Getenv("factorio_password"))
+		err, _ = factorio.FactorioLogin(os.Getenv("factorio_username"), os.Getenv("factorio_password"))
 		if err != nil {
 			log.Fatalf("Error logging in into factorio: %s", err)
 			return
diff --git a/src/factorio/mod_portal.go b/src/factorio/mod_portal.go
index 10218e1..678b2d1 100644
--- a/src/factorio/mod_portal.go
+++ b/src/factorio/mod_portal.go
@@ -4,7 +4,6 @@ import (
 	"encoding/json"
 	"errors"
 	"io/ioutil"
-	"log"
 	"net/http"
 	"net/url"
 	"time"
@@ -40,13 +39,17 @@ func ModPortalList() (interface{}, error, int) {
 	if err != nil {
 		return "error", err, http.StatusInternalServerError
 	}
+	defer resp.Body.Close()
 
 	text, err := ioutil.ReadAll(resp.Body)
-	resp.Body.Close()
 	if err != nil {
 		return "error", err, http.StatusInternalServerError
 	}
 
+	if resp.StatusCode != http.StatusOK {
+		return nil, errors.New(string(text)), resp.StatusCode
+	}
+
 	var jsonVal interface{}
 	err = json.Unmarshal(text, &jsonVal)
 	if err != nil {
@@ -69,9 +72,9 @@ func ModPortalModDetails(modId string) (ModPortalStruct, error, int) {
 	if err != nil {
 		return mod, err, http.StatusInternalServerError
 	}
+	defer resp.Body.Close()
 
 	text, err := ioutil.ReadAll(resp.Body)
-	resp.Body.Close()
 	if err != nil {
 		return mod, err, http.StatusInternalServerError
 	}
@@ -81,6 +84,10 @@ func ModPortalModDetails(modId string) (ModPortalStruct, error, int) {
 		return mod, err, http.StatusInternalServerError
 	}
 
+	if resp.StatusCode != http.StatusOK {
+		return ModPortalStruct{}, errors.New(string(text)), resp.StatusCode
+	}
+
 	server := GetFactorioServer()
 
 	installedBaseVersion := Version{}
@@ -99,37 +106,33 @@ func ModPortalModDetails(modId string) (ModPortalStruct, error, int) {
 }
 
 //Log the user into factorio, so mods can be downloaded
-func FactorioLogin(username string, password string) (string, error, int) {
+func FactorioLogin(username string, password string) (error, int) {
 	var err error
 
 	resp, err := http.PostForm("https://auth.factorio.com/api-login",
 		url.Values{"require_game_ownership": {"true"}, "username": {username}, "password": {password}})
 
 	if err != nil {
-		log.Printf("error on logging in: %s", err)
-		return "", err, resp.StatusCode
+		return err, http.StatusInternalServerError
 	}
 
 	defer resp.Body.Close()
 
 	bodyBytes, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
-		log.Printf("error on reading resp.Body: %s", err)
-		return "", err, http.StatusInternalServerError
+		return err, http.StatusInternalServerError
 	}
 
 	bodyString := string(bodyBytes)
 
 	if resp.StatusCode != http.StatusOK {
-		log.Println("error Statuscode not 200")
-		return bodyString, errors.New(bodyString), resp.StatusCode
+		return errors.New(bodyString), resp.StatusCode
 	}
 
 	var successResponse []string
 	err = json.Unmarshal(bodyBytes, &successResponse)
 	if err != nil {
-		log.Printf("error on unmarshal body: %s", err)
-		return err.Error(), err, http.StatusInternalServerError
+		return err, http.StatusInternalServerError
 	}
 
 	credentials := Credentials{
@@ -139,9 +142,8 @@ func FactorioLogin(username string, password string) (string, error, int) {
 
 	err = credentials.Save()
 	if err != nil {
-		log.Printf("error saving the credentials. %s", err)
-		return err.Error(), err, http.StatusInternalServerError
+		return err, http.StatusInternalServerError
 	}
 
-	return "", nil, http.StatusOK
+	return nil, http.StatusOK
 }
diff --git a/src/factorio_testfiles/file_usage.txt b/src/factorio_testfiles/file_usage.txt
index 0ce1286..71bc928 100644
--- a/src/factorio_testfiles/file_usage.txt
+++ b/src/factorio_testfiles/file_usage.txt
@@ -1 +1 @@
-The usage of the belt-balancer mod is allowed without additional licensing by knoxfighter/asdff45 (the creator of the mod and also write of this factorio-server-manager)
+The usage of the belt-balancer mod is allowed without additional licensing by knoxfighter/asdff45 (the creator of the mod and also contributor to this factorio-server-manager project)