请用英文优化这封邮件内容：亲爱的海蒂、我发这封邮件是想解释我的谷歌邮箱出了问题我不确定你是否收到了我之前题为 申请CSC资金的文件--Dan Wei 的邮件或任何发送到我现在被暂停的电子邮件账户的回复。很开心在之前的沟通中您答应我去您那边学习目前正在准备申请国家留学基金委CSC资助的文件。我需要一封邀请信您的简历并签名语言能力以及您在我的博士生联合培养项目研究计划最后一页的签名。列表中的所有这些文

Dear Heidi,

I am writing to explain my recent issue with my Google email account. I am unsure whether you received my previous email titled "Application for CSC Funding - Dan Wei" or any replies sent to my now suspended email account.

I am thrilled that you agreed to host me for my studies and I am currently preparing my application for funding from the China Scholarship Council (CSC). I require an invitation letter, your resume with signature, language proficiency, and your signature on the last page of my joint doctoral training program research plan.

All of these documents require your signature, which I have attached along with some examples for your review and reference.

I apologize for any inconvenience caused and I assure you of smooth communication in the future. I look forward to your reply. If you have any questions or concerns, please feel free to contact me at bs20213010068@cau.edu.cn.

Sincerely, Dan We