Fields have been set for Visualization in ZyINDEX, the "Show visualization buttons" option in the Web Client General tab is enabled and a 32bit 1.6.x or 1.7.x version of JRE is used.
Visualization module requires Analytics Bundle license. Analytics Bundle license is likely missing in the license file.
Contact the Customer Support to verify your license. If you did not buy a license for the Analytics Bundle, you will need to purchase it first.