fixed error when try to push telemtry and cf fails

application/src/main/java/org/thingsboard/server/service/cf/DefaultCalculatedFieldCache.java

@@ -117,7 +117,11 @@ public class DefaultCalculatedFieldCache implements CalculatedFieldCache {
                     CalculatedField calculatedField = getCalculatedField(calculatedFieldId);
                     if (calculatedField != null) {
                         ctx = new CalculatedFieldCtx(calculatedField, tbelInvokeService, apiLimitService);
-                        ctx.init();
+                        try {
+                            ctx.init();
+                        } catch (Exception e) {
+                            log.warn("Failed to initialize CF context.");
+                        }
                         calculatedFieldsCtx.put(calculatedFieldId, ctx);
                         log.debug("[{}] Put calculated field ctx into cache: {}", calculatedFieldId, ctx);
                     }