[2026-08-01 10:48:42] ERROR: Send registration OTP error: connect ECONNREFUSED 127.0.0.1:587
Error: connect ECONNREFUSED 127.0.0.1:587
    at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1705:16)
[2026-08-01 05:57:58] ERROR: Login error: secretOrPrivateKey must have a value
Error: secretOrPrivateKey must have a value
    at module.exports [as sign] (/home/optimiz5/nodevenv/smslynkbackend.optimizesolutions.lk/20/lib/node_modules/jsonwebtoken/sign.js:111:20)
    at generateAccessToken (file:///home/optimiz5/smslynkbackend.optimizesolutions.lk/src/services/authService.js:36:14)
    at Module.createTokenPair (file:///home/optimiz5/smslynkbackend.optimizesolutions.lk/src/services/authService.js:200:23)
    at login (file:///home/optimiz5/smslynkbackend.optimizesolutions.lk/src/controllers/authController.js:143:61)