diff --git a/calibre-plugin/libadobeAccount.py b/calibre-plugin/libadobeAccount.py
index e701834..1770f41 100644
--- a/calibre-plugin/libadobeAccount.py
+++ b/calibre-plugin/libadobeAccount.py
@@ -450,18 +450,19 @@ def signIn(account_type, username, passwd):
                 return False, "Invalid username or password!"
             elif ("E_AUTH_FAILED" in err and "LOGIN_FAILED" in err): 
                 return False, "E_AUTH_FAILED/LOGIN_FAILED. If you have 2FA enabled, please disable that and try again."
+            elif ("E_ADEPT_RESET_PW_REQUIRED" in err):
+                return False, "Server requires a password reset due to ByteBooks migration. See https://dtsbytebooks.com/transition-help"
             else: 
-                return False, "Unknown Adobe error:" + credentials
+                return False, "Unknown Adobe error:" + str(credentials)
             
         elif (credentialsXML.tag == adNS("credentials")):
             pass
             #print("Login successful")
         else: 
             return False, "Invalid main tag " + credentialsXML.tag
-
     
     except: 
-        return False, "Invalid response to login request"
+        return False, "Invalid response to login request (please open a bug report)"
 
     # Got correct credentials