You have an error in your SQL syntax on Joomla

Hello!

Briefly, I want to include a sub-category for one of our website www.foodnewslatam.com.

Since I do not know how to proceed I ran some tests from the admin of another of our website www.bioteclatam.com. BiotecLatam.com is NOT online yet!

What I did under the Admin of BiotecLatam.com :

I went to Content > Categories and I changed the name of ID 22 (this ID was unpublished and should remain unpublished).

So, to see what would happen, for ID 22 I changed the name "Cereales / Panadería" to "Cereales / Panadería / Colores".

I saved this change just to see what it would do.

And later, I put the original name back "Cereales / Panadería" but now when I go to Content > Articles it generates SQL error syntax 1064.

1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1 SQL=SELECT title FROM e5pxb_categories WHERE id =

Please help. Our technical guys cannot fix it!