bug launched MATLAB 2015 32 bits

[benyettou kamel]

when I'm trying to install some toolbox for my matlab ( cvr toolbox )
matlab is blocked and can't open any file matlab or see path when I run first matlab this message :
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Warning: Function narginchk has the same name as a MATLAB builtin. We suggest you rename the function to avoid a potential name conflict.
Warning: Duplicate directory name: C:\Users\KAMEL\Documents\MATLAB
Too many input arguments.
Warning: MATLAB did not appear to successfully set the search path. To recover for this session of MATLAB, type "restoredefaultpath;matlabrc". To find out how to avoid this warning the next time you start MATLAB, type "docsearch problem path" after recovering for this session.
Warning: Duplicate directory name: C:\Program Files\MATLAB\R2015b\toolbox\local
Warning: Initializing Java preferences failed in matlabrc.
This indicates a potentially serious problem in your MATLAB setup, which should be resolved as soon as possible. Error detected was:
MATLAB:narginchk:tooManyInputs
Too many input arguments.
> In matlabrc (line 120)
Warning: Initializing MATLAB Graphics failed.
This indicates a potentially serious problem in your MATLAB setup, which should be resolved as soon as possible. Error detected was:
MATLAB:narginchk:tooManyInputs
Too many input arguments.
> In hgrc (line 145)
In matlabrc (line 126)

Academic License

Error using usejava (line 43)
Too many input arguments.

Error in matlabrc (line 189)
if ~(ismcc || isdeployed || feature('isdmlworker')) && usejava('jvm')

Error using usejava (line 43)
Too many input arguments.

Error in connector.internal.autostart.run

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pleas can any body can help me.