Federation error (could not encrypt)

Community Support
1

Description

Server Setup Information

Version of Rocket.Chat Server: 3.18.5
Operating System: Windows
Deployment Method: tar
Number of Running Instances: 5
DB Replicaset Oplog: +
NodeJS Version: v12.18.4
MongoDB Version: 4.5
Proxy: nginx
Firewalls involved: -

Any additional Information

Hi All!

We can found another users from federated domains. But messages could not arrived. Logs:

server.js:204 Federation ➔ crypt.error TypeError: data must be a node Buffer
    at new Reader (/app/bundle/programs/server/npm/node_modules/asn1/lib/ber/reader.js:20:11)
    at Object.publicImport (/app/bundle/programs/server/npm/node_modules/node-rsa/src/formats/pkcs8.js:160:20)
    at Object.detectAndImport (/app/bundle/programs/server/npm/node_modules/node-rsa/src/formats/formats.js:66:48)
    at NodeRSA.module.exports.NodeRSA.importKey (/app/bundle/programs/server/npm/node_modules/node-rsa/src/NodeRSA.js:183:22)
    at new NodeRSA (/app/bundle/programs/server/npm/node_modules/node-rsa/src/NodeRSA.js:73:18)
    at FederationKeysModel.loadKey (app/models/server/models/FederationKeys.js:19:10)
    at encrypt (app/federation/server/lib/crypt.js:58:25)
    at federationRequest (app/federation/server/lib/http.js:16:11)
    at federationRequestToPeer (app/federation/server/lib/http.js:42:12)
    at dispatchEvents (app/federation/server/handler/index.js:65:3)
    at dispatchEvent (app/federation/server/handler/index.js:70:2)
    at app/federation/server/hooks/afterSaveMessage.js:26:2
    at /app/bundle/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/fiber_pool.js:43:40
server.js:204 Federation ➔ http.error [IGNORED] Error Error: Could not encrypt

Thanks for any help!