[Koha] excessive growth of our Koha system

Hi everyone! For some time we have been having an error in our koha system due to excessive growth of the database. The file that is constantly growing is: var/lib/mysql/ibdata1. It seems a zebra problem (We have a Koha old versión: 3.08...) We don't know why it grows so much or how to fix it. Currently we have to increase the server space because every few days there is a failure due to lack of space. It is a temporary solution but we would definitely like to fix the problem. Any suggestions? Thank you very much in advance! Manuel -- *Manuel Bueno Lluch* Archivo Histórico de CCOO de Andalucía c/ Japón, 41 - 41008, Sevilla Tlf: 954401619 / 62726 archivohistorico@and.ccoo.es www.estudiossindicales.andalucia.ccoo.es