What can I do about the PubMed error messages?
Please see the information about browsers and also ensure your browser and any servers you go through are enabled for Javascript (scripting), cookies, pop-ups, and HTTP 1.1 when you are using PubMed. Also, nlm.nih.gov should be considered a trusted site by your system(s). You may have to delete your browser’s cache (temporary files) before trying again.