Welcome to ElectroCom, the go-to channel for anyone passionate about electronics and telecommunication. Our mission is to make complex concepts easy to understand and apply, whether you are a student, hobbyist, TVET learner, or technology enthusiast.
At ElectroCom, we cover a wide range of topics, including Arduino projects, microcontrollers, circuit design, PCB layouts, RF technology, signal processing, networking, embedded systems, and IoT solutions. Each tutorial is designed to give you hands-on experience, guiding you step by step so you can confidently build projects, troubleshoot electronics, and explore new technologies.
We also explore fiber optics, wireless communication, smart home electronics, robotics, and practical electronics applications, bridging the gap between theory and real-world use. Our videos are structured to help beginners learn fundamentals while also providing advanced insights for learners who want to deepen their technical skills.
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Title: `Missing hash key: "collectionThumbnailViewModel" (KeyError)` Date: `2026-06-06T06:23:47Z` Route: `/channel/UCtqyOTCx2VGDojd9qD7bcTQ` Version: `2026.02.07-118d635 @ (HEAD detached at v2.20260207.0)` <details> <summary>Backtrace</summary> <p> ``` Missing hash key: "collectionThumbnailViewModel" (KeyError) from /usr/share/crystal/src/hash.cr:1198:9 in '??' from /usr/share/crystal/src/json/any.cr:149:5 in 'process' from src/invidious/yt_backend/extractors.cr:524:17 in 'process' from src/invidious/yt_backend/extractors.cr:1035:17 in 'parse_item' from src/invidious/yt_backend/extractors.cr:1082:14 in 'extract_items' from src/invidious/channels/videos.cr:29:22 in 'get_60_videos:continuation:sort_by' from src/invidious/routes/channels.cr:56:36 in 'videos' from lib/kemal/src/kemal/route.cr:13:9 in '->' from src/invidious/helpers/handlers.cr:31:37 in 'call' from /usr/share/crystal/src/http/server/handler.cr:30:7 in 'call' from /usr/share/crystal/src/http/server/handler.cr:30:7 in 'call_next' from lib/kemal/src/kemal/filter_handler.cr:22:7 in 'call' from /usr/share/crystal/src/http/server/handler.cr:30:7 in 'call' from /usr/share/crystal/src/http/server/handler.cr:30:7 in 'call_next' from src/invidious/helpers/handlers.cr:80:12 in 'call' from /usr/share/crystal/src/http/server/handler.cr:30:7 in 'call' from /usr/share/crystal/src/http/server/handler.cr:30:7 in 'call' from /usr/share/crystal/src/http/server/handler.cr:30:7 in 'call_next' from src/ext/kemal_static_file_handler.cr:127:14 in 'call' from /usr/share/crystal/src/http/server/handler.cr:30:7 in 'call' from /usr/share/crystal/src/http/server/handler.cr:30:7 in 'call' from /usr/share/crystal/src/http/server/handler.cr:30:7 in 'call' from /usr/share/crystal/src/http/server/request_processor.cr:51:11 in 'handle_client' from /usr/share/crystal/src/fiber.cr:170:11 in 'run' from ??? ``` </p> </details>