Hi @KBodarwe,
How many journals exist on your OJS 3 installation?
Besides error in Crossref plugin, the ordinary users (authors or reviewers etc) also get such an error when they are logged in, or when clicked on submissions each time.(screenshot)
This typically occurs when there are multiple journals on a domain, and occur in the second, and third journals. I think, the path of the first journal is added to all other journals too. For example the path of the first journal atb exist in the second journal api links (citymedicaljournal.com).
For ex; such a configuration gives the error
RewriteEngine On
RewriteBase /
# Bugfix for OJS 3.2.0-3: submissions API doesnt work with shortened URLs
RewriteRule ^api/v1(.*)$ index.php/atb/api/v1$1 [R,L]
RewriteCond %{SERVER_NAME} ^www.adlitipbulteni.com
RewriteCond %{REQUEST_URI} !/atb/
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ index.php/atb/$1 [L]
RewriteCond %{SERVER_NAME} ^www.citymedicaljournal.com
RewriteCond %{REQUEST_URI} !/cmj/
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ index.php/cmj/$1 [L]
The github issue seems have been closed, but I hope it will be reopened for a better fix.
Dou you have any suggestions?
Best regards,