How to generate dataset for this?

[kryptoniancode]

I have used this https://www.ncnynl.com/archives/202303/5844.html to run LIO SAM in ROS2 Gazebo simulation to generate cloud points in PCD formats. Then I have used cloudcompare to generate txt file with x,y,x,r,g,b,class values. After exporting I get around 60 txt files. Now how can I used it with this repository. I have tried but getting this error? Any help will be appreciated.

Sample of cloud points exported from CloudCompare