Dear friends, after 10 years, my site lost position on google for main keyword. All other keywords rankings are the same. I did not practice any link building or BHS. Last 2 years someone is seeding links to my site on porn and other bad reputation sites. Do you think that this could be the problem? But, in that case, I dont think that those links will afect only one keyword position?! I disavow hunderdts of bad domains before this happend, do you think that disawow had something with loosing position? Search console said: No manual webspam actions found. What could be the problem and how to fix it? Thank you!