Hello:
When I try to preview the project or any individual page I am receiving a message like this: "This page contains the following errors:
error on line 251 at column 465: Entity 'acute' not defined
Below is a rendering of the page up to the first error."

But there is no other information below.

Please help me.
Thanks in advance

Thank you very much. I deleted the code, tried the object otherwise and the issue got solved.