bugfix: fix ref error on this.req.locals.account.disable_cdrs

lib/call-session.js

@@ -384,7 +384,10 @@ class CallSession extends Emitter {
                 else if (this.req.locals.registration) trunk = 'user';
                 else trunk = 'sipUri';
               }
-              if (!this.req.locals.account.disable_cdrs) {
+              if (this.req.locals.account?.disable_cdrs) {
+                this.logger.debug('cdrs disabled for this account');
+              }
+              else {
                 this.req.locals.cdr = {
                   ...initCdr(this.req.srf, inv),
                   service_provider_sid: this.req.locals.service_provider_sid,