请教mothur在window系统中的使用报错解决方法

在window系统中使用mothur，在拆分fasta文件时出现了如下报错
mothur > split.groups(fasta=WML.fasta,group=WML.group,groups=all)

运行结果及报错内容

Using 16 processors.
Processing group: v4_37
[ERROR]: basic_string::_M_construct null not validRAM used: 6.36017Gigabytes . Total Ram: 15.8724Gigabytes.

has occurred in the SplitGroupCommand class function driverRunNameGroup. Please contact Pat Schloss at mothur.bugs@gmail.com, and be sure to include the mothur.logFile with your inquiry

如何解决呢？