Couldn't open neuromeg channels

Hi, I'm working on my MEG data on Brainstorm, it was ok for months until today I can't open the neuromeg Channels, the matlab shows a mistake as follows:

** Error: Line 87: 错误: 文件:union.m 行:1 列:1
** The input character is not a valid character in a matlab statement or expression
**
** Call stack:
** >tess_hemisplit.m at 87
** >figure_3d.m>UpdateSurfaceAlpha at 3169
** >figure_3d.m at 43
** >panel_surface.m>figure_callback at 870
** >panel_surface.m>SetSurfaceTransparency at 2183
** >panel_surface.m at 38
** >view_surface.m at 136
** >view_channels_3d.m at 110
** >tree_callbacks.m>DisplayChannels at 3090
** >tree_callbacks.m at 217
** >bst_call.m at 28
** >panel_protocols.m>CreatePanel/protocolTreeClicked_Callback at 109
**

I'm not sure what's wrong and how can I solve the problem

My guess is that you installed some additional Matlab tooblox that has a file union.m that shadows Matlab's union() function.
Clean your Matlab path to keep only the Matlab folders in it.
Type "which union" to see where is the faulty union.m

Yes, I've found the mistake. I installed a toolbox which has a union.m file which might confuse the brainstorm. Thank you so much!!