080036 : Too many variables are specified. You may use up to 5 variables.
The Conventional Find Similar Approach utilizes up to five variables.
If you want to continue using the Conventional Find Similar Approach, limit your variables to five or less. If you want to use more than five variables, uncheck this option and the Find Similar tool will instead use the PCA (Principal Component Approach), which allows you to use any number of variables.