For the LOTW error, there are two solutions, both located on page 5 of the User Manual. – https://physics.princeton.edu/pulsar/k1jt/Quick_Start_WSJT-X_2.0.pdf
CSV File needed to fix the LOTW Error – https://lotw.arrl.org/lotw-user-activity.csv
For the Rig Control Error, No files were needed.
Hopefully this will help you, if you should have any issues.