prevent traceback. Fixes #7080

src/common/helpers.py

@@ -1432,6 +1432,8 @@ def get_proxy_info(account):
     if p:
         proxy = {}
         proxyptr = gajim.config.get_per('proxies', p)
+        if not proxyptr:
+            return proxy
         for key in proxyptr.keys():
             proxy[key] = proxyptr[key][1]
         return proxy
@@ -1542,4 +1544,4 @@ def download_image(account, attrs):
     proxy = get_proxy_info(account)
     if proxy and proxy['type'] in ('http', 'socks5'):
         return _get_img_proxy(attrs, proxy)
-    return _get_img_direct(attrs)
+    return _get_img_direct(attrs)
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