Problem with a plugin that does not work proper in wordpress

Hi, I have 4+ years experience working as a Wordpress developer. I can fix this 404 issue for you. Looking forward to hear from you. Relevant Skills and Experience CSS, HTML, PHP, Website Design, WordPress Proposed Milestones $15 USD - project milestone

Let me fix for you right now Relevant Skills and Experience wordpress expert Proposed Milestones $30 USD - after fix

Hello. Nice to meet you. I just saw your description carefully. I have rich experience for wordpress. I can start immediately and i can satisfy you surely. I would like to discuss more about your project with you via chat. Thank you for your viewing my proposal.

Hi there and good afternoon , i read your project aboutr problem with a plugin after an update , im ready to check out the problem and fix it for you :) Relevant Skills and Experience wordpress plugin troubleshoot Proposed Milestones $25 USD - done

Hey, I have 5 year experience. I can share my work experience with you. I'm always available here .so Please send me a message once for more discussion.

Hello, I can help you in fixing 404 not found error of your website http://edv-cad.com. Relevant Skills and Experience I have wordpress skills of plugin and theme development of around 9+ years. Please ping me so that we can discuss the project in detail thanks Proposed Milestones $30 USD - FInal

Hello, I confident to do this. I can help you immediately. I will help you solve 404 error in 1hour. Thank you, OE Relevant Skills and Experience Wordpress, PHP, error 404 Proposed Milestones $30 USD - Milestone

Plugin or a landing page can be create and we can fix this error, we are able to customize and fix errors in the sql of plug-ins or themes. Relevant Skills and Experience Over 20 years experience in web hosting, pages, design, seo, data center, web server, web space, sql and programming. Proposed Milestones $20 USD - Error fixed. No further questions :)

Its looks something with Permalink. You flush rewrite after update WordPress.???