forbidden error if no path or alias entered

Apache error:

Forbidden
You don't have permission to access /<form+action="/admin/path/add"++method="post"+id="path_form"> <div><div+class="form-item"> +<label+for="edit-src">Existing+system+path:+</label> +<input+type="text"+maxlength="64"+name="edit[src]"+id="edit-src"++size="60"+value=""+class="form-text+error"+/> +<div+class="description">Specify+the+existing+path+you+wish+to+alias.+For+example:+node/28,+forum/1,+taxonomy/term/1+2.</div> </div> <div+class="form-item"> +<input+type="text"+maxlength="64"+name="edit[dst]"+id="edit-dst"++size="60"+value=""+class="form-text+error"+/> +<div+class="description">Specify+an+alternative+path+by+which+this+data+can+be+accessed.++For+example,+type+"about"+when+writing+an+about+page.++Use+a+relative+path+and+don't+add+a+trailing+slash+or+the+URL+alias+won't+work.</div> </div> <input+type="submit"+name="op"+value="Create+new+alias"++class="form-submit"+/> <input+type="hidden"+name="edit[form_id]"+id="edit-path-form"+value="path_form"++/> </div></form> on this server.