最近我配置了站点到站点 VPN 隧道，但出现了以下错误：
3 Feb 27 2018 09:21:57 Tunnel Manager has failed to establish an L2L SA. All configured IKE versions failed to establish the tunnel. Map Tag= TTL_map. Map Sequence Number = 1.
3 Feb 27 2018 09:21:57 Group = 10.249.7.13, IP = 10.249.7.13, Removing peer from correlator table failed, no match!
3 Feb 27 2018 09:21:57 Group = 10.249.7.13, IP = 10.249.7.13, QM FSM error (P2 struct &0x00007fff383352e0, mess id 0xb3f7fd67)!
我做了研究并应用了他们推荐的许多解决方案，但没有结果。
我该如何解决这个问题？非常感谢！