The "keystore password was incorrect" error in keytool indicates that the password you provided when trying to access or modify a keystore is incorrect. To resolve this issue, you can follow these steps:   Verify the Correct Password Double-check that you are entering the correct password for the keystore. Passwords are case-sensitive, so make sure that the case of the characters in the password matches the one you used when creating or modifying the keystore.   Try the Default...

By default the maximum file upload size is set to 2MB.  It is not a Drupal issue, instead a php issue as upload_max_filesize is set in your php configuration (php.ini file).  Therefore it is a server-side configuration. If you have access to the php configuration file, I would recommend to make the changes directly in it.  Yet, on some occasions you cannot access the server configuration (on a shared hosting, for instance) and if you wish to alter some of your server...