how to restart Test link on Ubuntu

yesterday i installed on Ubuntu Test-link using following commands.

wget https://downloads.bitnami.com/files/stacks/testlink/1.9.14- 4/bitnami-testlink-1.9.14-4-linux-x64-installer.run

wget https://downloads.bitnami.com/files/stacks/testlink/1.9.14- 4/bitnami-testlink-1.9.14-4-linux-x64-installer.run

sudo chmod +x bitnami-testlink-1.9.14-4-linux-x64-installer.run

sudo ./bitnami-testlink-1.9.14-4-linux-x64-installer.run

At that time it could be run. when i restart the laptop it is not working. How can i run it again.