Run-time error 1004 in Excel Macro

I am new to scripting and I am trying to improve my previous code. The code works to change row and height of the cells in regards of the user input. The code is working just fine, except when I input number less than 5 characters inside the text box. It keeps on getting this error : "Run- time error '1004' Unable to set the ColumnWidth property of the Range class". I tried using On Error Resume Next but it didn't works. These are the code:

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I kept on getting error in this line "Columns.ColumnWidth = pixcol". Please help.
Thank you.

Hi all. I can figure out the answer already. I just insert error handling code to my previous code. It looks like this:

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Thank you for your kind assistance.