fix versionstring parsing

api.py

@@ -4,6 +4,7 @@ import re
 
 from packaging import version
 
+import logging
 
 class EjabberdApi:
     """
@@ -31,17 +32,18 @@ class EjabberdApi:
     @property
     def verstring(self):
         if self._login is not None:
-            ver_str = re.compile('([1-9][0-9.]*)')
+            ver_str = re.compile('([1-9][0-9.]+)')
             status = self.cmd('status', {})
 
             # matches
             try:
-                tmp = ver_str.findall(status)[0]
+                tmp = ver_str.findall(status)[1]
             # raise SystemExit code 17 if no status message is received
             except TypeError:
                 raise SystemExit(17)
 
             # return parsed version string
+            logging.debug(f"fetch version: {tmp}")
             return version.parse(tmp)
 
         return None