MDB Publish (CLI) not working

When I use "mdb publish", I am getting the following error. How can it be fixed? Thanks.

Publishing... - Uploading files(node:8740) Warning: Setting the NODE_TLS_REJECT_UNAUTHORIZED environment variable to '0' makes TLS connections and HTTPS requests insecure by disabling certificate verification. / Uploading files | 0.392 Mbevents.js:292 throw er; // Unhandled 'error' event ^

Error: socket hang up at connResetException (internal/errors.js:610:14) at TLSSocket.socketOnEnd (_http_client.js:453:23) at TLSSocket.emit (events.js:327:22) at endReadableNT (_stream_readable.js:1220:12) at processTicksAndRejections (internal/process/task_queues.js:84:21) Emitted 'error' event on ClientRequest instance at: at TLSSocket.socketOnEnd (_http_client.js:453:9) at TLSSocket.emit (events.js:327:22) at endReadableNT (_stream_readable.js:1220:12) at processTicksAndRejections (internal/process/task_queues.js:84:21) { code: 'ECONNRESET' }ots, code snippets etc.)**