removed the concurrency limit, it is not recognized

app.py

@@ -1028,8 +1028,7 @@ with gr.Blocks(theme=soft, title="Social Bias Testing in Language Models",
                    inputs=[test_sentences,group1,group2,att1,att2,tested_model_name],
                    outputs=[err_message, bar_progress, s1_btn, s2_btn, s3_btn, tab1, tab2, tab3, model_bias_label, 
                             attribute_bias_html_stereo, attribute_bias_html_antistereo, test_pairs, 
-                            interpretation_msg, group1_fixed2, group2_fixed2, att1_fixed2, att2_fixed2],
-                   concurrency_limit=3
+                            interpretation_msg, group1_fixed2, group2_fixed2, att1_fixed2, att2_fixed2]
                    )
     
     # top breadcrumbs
@@ -1079,4 +1078,4 @@ with gr.Blocks(theme=soft, title="Social Bias Testing in Language Models",
     att1.change(fn=changeTerm, inputs=[], outputs=[csv])
     att2.change(fn=changeTerm, inputs=[], outputs=[csv])
 
-iface.queue(concurrency_count=5).launch() #concurrency_count=2
+iface.queue(concurrency_count=10).launch() #concurrency_count=2