Hi,
Some issues related to this have been fixed in the newer TOS6 version. If you are still using the old TOS6, it is recommended that you update the TOS system.
To contact our team, please send email to following addresses, remember to replace (at) with @:
Technical team: support(at)terra-master.com (for technical support)
Service team: service(at)terra-master.com (for purchasing, return, replacement, RMA service)