Try this link to download IE 11
https://support.microsoft.com/en-ca/help/18520/download-internet-explorer-11-offline-installer
Even though you have Windows 10, it might be possible that your IE version is old. I think Windows 10 uses Edge as the pre-installed browser now.
SketchOSM (and all SketchUp plugins) display UI dialogs using the current IE version that you have installed. Unfortunately, we as the developer have no control over this (we can’t choose to use Chrome or Edge for example). Installing IE 11 should fix your problem.