Number of fields in table

Number of fields in table

Our table includes "too many text fields".  Your support documents state: "Form can have maximum of 80 text fields with max length of 255(SingleLine and Email). This can be increased by reducing the max length value."  We reduced 50 fields from 255 characters to 3 characters.  We are still UNABLE to add a single new field to the table.  What's going on????