diff --git a/src/lastfm.hpp b/src/lastfm.hpp
index 33b3eeb..831dd53 100644
--- a/src/lastfm.hpp
+++ b/src/lastfm.hpp
@@ -44,13 +44,17 @@ public:
         parameters["api_sig"] = getApiSignature(parameters);
         std::string postBody = utils::getURLEncodedPostBody(parameters);
         std::string response = utils::httpRequest(api_base, "POST", postBody);
-        auto j = nlohmann::json::parse(response);
-        if (j.contains("error"))
-            return j["error"].get<LASTFM_STATUS>();
+        try {
+            auto j = nlohmann::json::parse(response);
+            if (j.contains("error"))
+                return j["error"].get<LASTFM_STATUS>();
 
-        session_token = j["session"]["key"].get<std::string>();
-        authenticated = true;
-        return LASTFM_STATUS::SUCCESS;
+            session_token = j["session"]["key"].get<std::string>();
+            authenticated = true;
+            return LASTFM_STATUS::SUCCESS;
+        } catch (...) {
+            return LASTFM_STATUS::UNKNOWN_ERROR;
+        }
     }
 
     LASTFM_STATUS scrobble(std::string artist, std::string track) {
diff --git a/src/main.cpp b/src/main.cpp
index 2e2916a..6138cd6 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -50,7 +50,7 @@ void initLastFM(bool checkMode = false) {
     lastfm = new LastFM(settings.lastfm.username, settings.lastfm.password, settings.lastfm.api_key,
                         settings.lastfm.api_secret);
     LastFM::LASTFM_STATUS status = lastfm->authenticate();
-    if (status)
+    if (status && checkMode)
         wxMessageBox(_("Error authenticating at LastFM!"), _("PlayerLink"), wxOK | wxICON_ERROR);
     else if (checkMode)
         wxMessageBox(_("The LastFM authentication was successful."), _("PlayerLink"), wxOK | wxICON_INFORMATION);