I failed to add a new node to cluster and GUI becomes slow. How can I recover it.

[stats]

Hello,

I tried to add the 4th node in the cluster (vgpm04/172.19.0.14) from the GUI and but it failed in the process.
The GUI is now very slow and unusable. How can I get back to normal?
I stopped the vgpm04 pve-cluster service and the colosync service, but this did not affects.

root@vgpm03:~# pvecm nodes

Membership information
----------------------
Nodeid Votes Name
1 1 vgpm01
2 1 vgpm02
3 1 vgpm03 (local)


root@vgpm03:~# pvecm status
Cluster information
-------------------
Name: vgcluster01
Config Version: 4
Transport: knet
Secure auth: on

Quorum information
------------------
Date: Sat May 4 19:55:40 2024
Quorum provider: corosync_votequorum
Nodes: 3
Node ID: 0x00000003
Ring ID: 1.2643
Quorate: Yes

Votequorum information
----------------------
Expected votes: 4
Highest expected: 4
Total votes: 3
Quorum: 3
Flags: Quorate

Membership information
----------------------
Nodeid Votes Name
0x00000001 1 172.19.0.11
0x00000002 1 172.19.0.12
0x00000003 1 172.19.0.13 (local)