What is the agreement error in this sentence?

Everyone should bring their Chromebook the second day of school.

The agreement error is the word Chromebook. It must be contain the letter s at the end. Chromebooks.

Explanation:

The agreement error is defined grammatically when the subject and verb of a sentence don not agree in number. The verb and is the action of being of the subject. Subjects and verbs need to agree in number which is known as singular or plural.

the correction without the error is- - Everyone should bring their Chromebook on the second day of school.