If page metadata count is not set return 0.

Author: lmarini

frontend/src/components/Public.tsx

@@ -114,7 +114,7 @@ export const Public = (): JSX.Element => {
 						</Grid>
 						<Box display="flex" justifyContent="center" sx={{ m: 1 }}>
 							<Pagination
-								count={Math.ceil(pageMetadata.total_count / limit)}
+								count={Math.ceil((pageMetadata?.total_count ?? 0) / limit)}
 								page={currPageNum}
 								onChange={handlePageChange}
 								shape="rounded"

frontend/src/components/datasets/PublicDataset.tsx

@@ -281,7 +281,7 @@ export const PublicDataset = (): JSX.Element => {
 						/>
 						<Box display="flex" justifyContent="center" sx={{ m: 1 }}>
 							<Pagination
-								count={Math.ceil(pageMetadata.total_count / limit)}
+								count={Math.ceil((pageMetadata.total_count ?? 0) / limit)}
 								page={currPageNum}
 								onChange={handlePageChange}
 								shape="rounded"