diff --git a/src/workers/GeoCaptchaSolver.js b/src/workers/GeoCaptchaSolver.js
index c7c4eae..60e8305 100644
--- a/src/workers/GeoCaptchaSolver.js
+++ b/src/workers/GeoCaptchaSolver.js
@@ -83,16 +83,23 @@ class GeoCaptchaSolver {
                         // fieldInputs[i].value = number_list[i];
                         await delay(500 + getRandomWaitTime());
                     }
-                    let content = await captcha_container.innerHTML()
-                    console.log("inner container is " + content)
-                    try {
-                        if (number_list.length === 0) {
-                            onResult(false)
-                        } else {
-                            onResult(true)
+                    if (!this.page.isClosed()) {
+                        try {
+
+                            let content = await captcha_container.innerHTML()
+                            console.log("inner container is " + content)
+                            try {
+                                if (number_list.length === 0) {
+                                    onResult(false)
+                                } else {
+                                    onResult(true)
+                                }
+                            } catch (e) {
+                                console.log(e)
+                            }
+                        } catch (e) {
+                            console.log(e)
                         }
-                    } catch (e) {
-                        console.log(e)
                     }
                 }
             )