please help me eglish translation

题目

please help me eglish translation
this insurance shall remain in force only upon prompt notice to this company when the insured becomes aware of the same and payment of an additional premium if required.

答案

如遇航程变更或发现保险单所载明的货物、船名或航程有遗漏或错误时,被保险人应在获悉后立即通知保险人并在必要时加缴保险费,本保险才继续有效.
In case of a change of voyage or any omission or error in the description of the interest the name of the vessel or voyage,this insurance shall remain in force only upon prompt notice to this company when the insured becomes aware of the same and payment of an additional premium if required.