"Error in BLOCK_RECORD Table

[Anonymous]

Dear Sir

I tried to remove Autocad Educational title from my autocad drawing by converting to dfx format but after opening dfx file it show error as " Error in BLOCK_RECORD Table
Invalid symbol table record name: "B02-P-200 (OPTION-2)|SCHEMATIC SECTION$0$1~GROUND FLOOR$0$SHEET NO. 2 - TRIANGULATION$0$_None" on line 31430.
Invalid or incomplete DXF input -- drawing discarded." with termination of operation.Kindly provide solution for above eroor on below attached Autocad File

[Alfred.NESWADBA]

Hi,

>> I tried to remove Autocad Educational title from my autocad drawing

This is illegal ... it's a violation of license terms.

To be read >>>here<<<:

8) May I remove the education watermark in AutoCAD 2019 and/or AutoCAD 2019 vertical products?
It is intended that this watermark promotes legitimate use of AutoCAD software licensed 
by students and educators through the Autodesk Education Community and any action to 
bypass the watermark is a violation of your license terms

- alfred -