Common Issues
general
My App Was Working Yesterday and Now It's Completely Down
Your app was running perfectly fine — maybe for days, weeks, or even months. Then suddenly, without you changing anything, it stopped working. Users are seeing errors, the page won't load, or features that worked yesterday are now broken.
This is terrifying, especially if you have paying customers or an important demo coming up. You didn't touch anything, so why did it break? The answer is usually that something in the background changed — a subscription expired, a service went down, or an automatic update broke something.
The key is to figure out what changed and fix it as quickly as possible. Most sudden outages have simple causes once you know where to look.
Error Messages You Might See
503 Service Unavailable
500 Internal Server Error
This site's security certificate has expired
ERR_CERT_DATE_INVALID
Database connection limit reached
Account suspended
Common Causes
- Hosting subscription expired — Your free trial or paid plan ended and the hosting provider took your app offline
- Database hit its limit — Your database ran out of free storage or connections and stopped accepting requests
- API key expired or was revoked — A third-party service you depend on (payments, email, maps) changed or expired your access key
- SSL certificate expired — Your site's security certificate ran out and browsers now block the page entirely
- Automatic updates broke something — A library or dependency auto-updated to a version that's not compatible with your code
- The service your app depends on went down — If Supabase, Firebase, Vercel, or another service has an outage, your app goes down too
How to Fix It
- Check your hosting platform first — Log in and see if there are any warnings, billing issues, or outage notices
- Check third-party service status — Visit the status pages of services you use (Supabase status, Vercel status, Stripe status, etc.)
- Look at billing and subscriptions — Check if any free trials expired or credit cards were declined
- Check your domain and SSL — Make sure your domain is still connected and the SSL certificate hasn't expired
- Look at error messages — Open the app and note any error codes (500, 503, etc.) to help identify the problem
- Redeploy the app — Sometimes simply redeploying from your hosting dashboard fixes temporary issues
Real developers can help you.
Milan Surelia
Milan Surelia is a Mobile App Developer with 5+ years of experience crafting scalable, cross-platform apps at 7Span and Meticha. At 7Span, he engineers feature-rich Flutter apps with smooth performance and modern UI. As the Co-Founder of Meticha, he builds open-source tools and developer-focused products that solve real-world problems.
Expertise:
💡 Developing cross-platform apps using Flutter, Dart, and Jetpack Compose for Android, iOS, and Web.
🖋️ Sharing insights through technical writing, blogging, and open-source contributions.
🤝 Collaborating closely with designers, PMs, and developers to build seamless mobile experiences.
Notable Achievements:
🎯 Revamped the Vepaar app into Vepaar Store & CRM with a 2x performance boost and smoother UX.
🚀 Launched Compose101 — a Jetpack Compose starter kit to speed up Android development.
🌟 Open source contributions on Github & StackOverflow for Flutter & Dart
🎖️ Worked on improving app performance and user experience with smart solutions.
Milan is always happy to connect, work on new ideas, and explore the latest in technology.
Jared Hasson
Full time lead founding dev at a cyber security saas startup, with 10 yoe and a bachelor's in CS. Building & debugging software products is what I've spent my time on for forever
Basel Issmail
’m a Senior Full-Stack Developer and Tech Lead with experience designing and building scalable web platforms. I work across the full development lifecycle, from translating business requirements into technical architecture to delivering reliable production systems.
My work focuses on modern web technologies, including TypeScript, Angular, Node.js, and cloud-based architectures. I enjoy solving complex technical problems and helping teams turn product ideas and prototypes into working platforms that can grow and scale.
In addition to development, I often collaborate closely with product managers, business analysts, designers, and QA teams to ensure that solutions align with both technical and business goals.
I enjoy working with startups and product teams where I can contribute both as a hands-on engineer and as a technical partner in designing and delivering impactful software.
zipking
I am a technologist and product builder dedicated to creating high-impact solutions at the intersection of AI and specialized markets. Currently, I am focused on PropScan (EstateGuard), an AI-driven SaaS platform tailored for the Japanese real estate industry, and exploring the potential of Archify.
As an INFJ-T, I approach development with a "systems-thinking" mindset—balancing technical precision with a deep understanding of user needs. I particularly enjoy the challenge of architecting Vertical AI SaaS and optimizing Small Language Models (SLMs) to solve specific, real-world business problems. Whether I'm in a CTO-level leadership role or hands-on with the code, I thrive on building tools that turn complex data into actionable value.
Caio Rodrigues
I'm a full-stack developer focused on building practical and scalable web applications. My main experience is with **React, TypeScript, and modern frontend architectures**, where I prioritize clean code, component reusability, and maintainable project structures.
I have strong experience working with **dynamic forms, state management (Redux / React Hook Form), and complex data-driven interfaces**. I enjoy solving real-world problems by turning ideas into reliable software that companies can actually use in their daily operations.
Beyond coding, I care about **software quality and architecture**, following best practices for componentization, code organization, and performance optimization.
I'm also comfortable working across the stack when needed, integrating APIs, handling business logic, and helping transform prototypes into production-ready systems.
My goal is always to deliver solutions that are **simple, efficient, and genuinely useful for the people using them.**
legrab
I'll fill this later
Krishna Sai Kuncha
Experienced Professional Full stack Developer with 8+ years of experience across react, python, js, ts, golang and react-native. Developed inhouse websearch tooling for AI before websearch was solved : )
Dor Yaloz
SW engineer with 6+ years of experience,
I worked with React/Node/Python
did projects with React+Capacitor.js for ios
Supabase expert
Nam Tran
10 years as fullstack developer
Prakash Prajapati
I’m a Senior Python Developer specializing in building secure, scalable, and highly available systems. I work primarily with Python, Django, FastAPI, Docker, PostgreSQL, and modern AI tooling such as PydanticAI, focusing on clean architecture, strong design principles, and reliable DevOps practices. I enjoy solving complex engineering problems and designing systems that are maintainable, resilient, and built to scale.
Describe what's wrong in plain English. No technical knowledge needed.
Get HelpFrequently Asked Questions
I didn't change anything, so why did it break?
Many things can change without you doing anything: hosting subscriptions expire, database storage fills up, SSL certificates expire, or services you depend on have their own outages. Regular maintenance prevents most of these surprises.
How can I prevent this from happening again?
Set up uptime monitoring (free tools like UptimeRobot will alert you immediately), keep track of when subscriptions renew, and make sure payment methods on all services are up to date.