Fix - Array to string conversion while parsing samrt tag

Author: NirajChaudhary143

includes/class-evf-form-task.php

@@ -548,7 +548,7 @@ public function do_task( $entry ) {
 			 * @since 3.2.3
 			 */
 			foreach ($this->form_fields as $key => $value) {
-				if ( isset( $value['value'] ) ) {
+				if ( ! empty( $value['value'] ) && is_string( $value['value'] ) && strpos( $value['value'], '{' ) !== false ) {
 					$this->form_fields[ $key ]['value'] = apply_filters( 'everest_forms_process_smart_tags', $value['value'], $this->form_data, $this->form_fields );
 				}
 			}
@@ -1143,7 +1143,9 @@ public function entry_save( $fields, $entry, $form_id, $form_data = array() ) {
 				}
 
 				if ( isset( $field['meta_key'], $field['value'] ) && '' !== $field['value'] ) {
-					$field['value'] = apply_filters( 'everest_forms_process_smart_tags', $field['value'], $form_data, $fields, $entry_id );
+					if ( ! empty( $field['value'] ) && is_string( $field['value'] ) && strpos( $field['value'], '{' ) !== false ) {
+						$field['value'] = apply_filters( 'everest_forms_process_smart_tags', $field['value'], $form_data, $fields, $entry_id );
+					}
 					$entry_metadata = array(
 						'entry_id'   => $entry_id,
 						'meta_key'   => sanitize_key( $field['meta_key'] ),