Make sure you are using the most up to date version of your streaming software. Outdated versions will cause certain widgets to not work. You can check by going to "Help" on your steaming software and then "Check for updates".
Note: These links are all direct download links, once you click the link it will automatically start the download. (Except for CLR Browser Source)
Open Broadcaster Software Classic
Release 0.657- Zip File
OBS+ CLR Browser Source- Zip File
Open Broadcaster Software Studio (formerly OBS Multiplatform)
Broadcaster Version 2.7.1602.2220- Released March 3, 2016
Gamecaster Version 2.7.1512.1839- Released January 14, 2016