Manage external account associations error

Fatal error: Uncaught exception 'Twig_Error_Loader' with message 'Unable to find template "" (looked into: ./styles/prosilver/template) in "ucp_auth_link.html" at line 9.' in C:\wamp\www\phpbb3-fork\phpBB\vendor\twig\twig\lib\Twig\Loader\Filesystem.php:202
Stack trace:
#0 C:\wamp\www\phpbb3-fork\phpBB\vendor\twig\twig\lib\Twig\Loader\Filesystem.php(138): Twig_Loader_Filesystem->findTemplate('')
#1 C:\wamp\www\phpbb3-fork\phpBB\vendor\twig\twig\lib\Twig\Environment.php(265): Twig_Loader_Filesystem->getCacheKey('')
#2 C:\wamp\www\phpbb3-fork\phpBB\vendor\twig\twig\lib\Twig\Environment.php(312): Twig_Environment->getTemplateClass('', NULL)
#3 C:\wamp\www\phpbb3-fork\phpBB\phpbb\template\twig\environment.php(122): Twig_Environment->loadTemplate('', NULL)
#4 C:\wamp\www\phpbb3-fork\phpBB\vendor\twig\twig\lib\Twig\Environment.php(373): phpbb_template_twig_environment->loadTemplate('')
#5 C:\wamp\www\phpbb3-fork\phpBB\cache\twig\54\c6\768cf7caa2ede83782e8234a59b0.php(60): Twig_Environment->resolveTemplate('')
#6 C:\wamp\www\phpb in C:\wamp\www\phpbb3-fork\phpBB\vendor\twig\twig\lib\Twig\Loader\Filesystem.php on line 202