error after using the search box

Error after using the search box

What Causes This Error?

{"success":true,"result":[{"value":"<b>06<\/b>-20100-015","realValue":"06-20100-015"}.......

Many weeks working all correctly, and suddenly, the error message appears in all my projects


PHPRunner Enterprise 9.8 (Build 29725 x64)
(IIS)-Manager
PHP Version 5.6.30

Thanks