Resource Allocation To Project is not working

Hi All,

We are facing below issue .

Earlier we use to align resources to projects using this below path:

IND/Project management and accounting/Common/Project resources/Resources/Soft Book

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We use to select the resources and then Soft Book on the required project.

But from past some days when we are trying to align a resource to project the form keeps  buffering,after sometime form gets closed but the resource is not getting aligned to the project. Also we are not getting any error message/screen.

Please suggest how can we can 

Thanks in advance!