Error in &2. Template &1 contains a grid length marker without a grid length.
&1 - The name of the template
&2 - The name of the function
In template &1 used by function &2 a grid length replacement marker has been found. However, the replacement marker does not contain any length.
Find the /(ROWS-) marker in the template. If you want to use it for controlling the length of a grid - insert the desired number of rows after the "-"; e.g. /(ROWS-12).