How should excessive reactor thickness during economic analysis be addressed?

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The error displayed is: ERROR> ‘VT - 13’ – The thickness of 341.73 is outside the range of acceptable values for system data. According to the software’s manual, the solution to this problem is as follows: Problem 8: This error occurs in packed towers or plug flow reactors (which are, by default, considered to be packed towers with a single diameter): ERROR> ‘TW - 1’ – The thickness of 14.50 is outside the range of acceptable values for system data. Cause 8: The thickness of the base material of the tower or reactor is greater than the maximum allowable thickness. This usually happens when the diameter specified in the simulation is too large. Solution 8: Either adjust the thickness of the base material manually in the equipment settings, or reduce the diameter of the tower or reactor in the simulation. In the case of reactors where the diameter is much larger than the length, it is usually necessary to reduce the diameter and increase the length in order to maintain the reactor’s volume. However, even after changing the thickness, the problem persists； 2. By reducing the diameter and increasing the length, other errors will appear, such as “ERROR > ‘VT - 13’ FLANGE RATING IS ZERO AT A TEMPERATURE OF 530.0 AND A PRESSURE OF 209.” How should this be resolved?