You may see an error similar to the following in your license status:

[ERROR] VPS License cannot be used on non-VPS server. 2015-07-30 04:48:30.503 [Notice] Memory size is 16323848KB. 2015-07-30 04:48:30.959 [ERROR][LICENSE]License key operation failure: EXCEPTION LCA.3: fail to process

VPS licenses have a 2GB RAM limit and Ultra VPS licenses have an 8GB RAM limit. You cannot use such license on servers that would go over these limits. 1-CPU licenses and up do not have such hardware limitations.

For example, in the above error, a VPS license cannot be used on a VPS with 16GBs of RAM. You will need to upgrade the license to a 1-CPU license or greater.