diff --git a/apps/canvas/back/src/index.ts b/apps/canvas/back/src/index.ts
index f14cfd1..cd18249 100644
--- a/apps/canvas/back/src/index.ts
+++ b/apps/canvas/back/src/index.ts
@@ -796,6 +796,7 @@
 		const projectId = Number(req.params["projectId"]);
 		const result = WorkerSchema.safeParse(req.body);
 		if (!result.success) {
+			console.log(JSON.stringify(result.error));
 			resp.status(400);
 			resp.write(
 				JSON.stringify({
diff --git a/apps/canvas/back/src/project_monitor.ts b/apps/canvas/back/src/project_monitor.ts
index 4b234a5..df20e05 100644
--- a/apps/canvas/back/src/project_monitor.ts
+++ b/apps/canvas/back/src/project_monitor.ts
@@ -22,12 +22,14 @@
 	address: z.string().url(),
 	status: z.optional(
 		z.object({
-			commit: z.optional(
-				z.object({
-					hash: z.string(),
-					message: z.string(),
-				}),
-			),
+			commit: z
+				.optional(
+					z.object({
+						hash: z.string(),
+						message: z.string(),
+					}),
+				)
+				.nullable(),
 			commands: z.optional(
 				z.array(
 					z.object({