cerrars
Cerrars is not a standard Spanish verb. The correct infinitive is cerrar, meaning to close, and its reflexive form is cerrarse, meaning to close oneself or to become closed off. The sequence cerrars is generally a misspelling or typographical error, often arising when a pronoun is mistakenly attached to the infinitive or when a writer tries to combine cerrar with a reflexive or pronoun in an informal way.
In proper usage, the verb forms are cerrado, cerrando, and the present tense cierro, cierras, cierra, cerramos,
Correct orthography matters because cerrars does not correspond to a recognized standard form in Spanish dictionaries.
See also: cerrar, cerrarse, conjugation of cerrar, pronoun attachment in Spanish.