Access violation at address 00580292 in module diva.ex. Write of address 00000000

While trying to create climate files I get the following error: Access violation at address 00580292 in module diva.ex. Write of address 00000000. There is no error if I put in less files, e.g. months 1 t/m 5. I however need to of course have months 1 t/m 12 in there? Too large files? Impossible to make them smaller, I need it all. Any suggestions?